Deepak Chona, MD. SMA Profile picture
Data-driven injury analyst - NFL/NBA/MLB/fantasy football. Stanford, Harvard-trained sports surgeon. Featured on ESPN, NBC, The Athletic. Expert @FantasyPros
Jun 18 6 tweets 1 min read
#NFL Injury Updates:

#Giants Malik Nabers - Yellow flag. Not huge red. Chronic toe elevates risk in-season, but often see missed time in June that doesn't cause problems by Sept

#Buccaneers Chris Godwin - Expecting slow start (80% Wk 1) and progressive ramp up (90% Wk 8)

1/6
#Chiefs Isiah Pacheco - Returned only 10 wks post-ankle fracture. '24 dip = heavily expected. Now projects for 90% by Wk 1. Value potential at RB 29

#Eagles Saquon Barkley - High volume last year doesn't necessarily mean injury this yr. Injury history relatively mild

2/6
Nov 18, 2024 7 tweets 2 min read
#NFL Injury Updates:

#Cowboys CeeDee Lamb - Comments suggest mild severity. Having 2 injuries carries high re-aggravation risk. Would still start him

#Chiefs Isiah Pacheco - High risk start Wk 12. Data projects major stats dip + workload limits. Avg ramp up = 4-6 wks

1/7
#Texans Nico Collins - Data suggests we can confidently plug and play. Projects 90% of pre-injury baseline production. 15% re-injury risk next 6 wks

#Falcons Darnell Mooney - Hamstring today. Avg = 2 wks. Mild Achilles strain this wk. Wk 12 bye, but Wk 13 in doubt

2/7
Nov 11, 2024 9 tweets 2 min read
#NFL Injury Updates:

#Texans Nico Collins - Likely inactive cuz each wk lowers re-injury risk (~15% right now). If no setback, data favors Wk 11 return at 90+%

#Bills Dalton Kincaid - Video suggests contusion vs PCL sprain. MRI Mon. Suspect short-term (if any) absence

1/9
#Dolphins Tyreek Hill - Social posts suggest playing. Practice data (DNP x2) favors sitting. If active, consider him high risk for re-aggravation + extended absence

#Vikings Aaron Jones - Likely rib/chest contusion. Often played thru w/2-4 wk production dip

2/9
Nov 5, 2024 7 tweets 2 min read
#NFL Injury Updates:

#Chiefs Patrick Mahomes - Likely mild re-injury. Has played thru severe ankle before

#Eagles AJ Brown - Contusion +/- MCL. Lean to playing Wk 10 w/o major dip

#Cowboys CeeDee Lamb - Likely playing. ~20% dip projected, worse if he falls on it in-game

1/7
#Cowboys Dak Prescott - TBD, suspect IR coming

#Falcons Drake London - Data favors return Wk 10 + mild dip

#49ers Christian McCaffrey - Expect load management + strong efficiency. Lean towards Wk 10 return

2/7
Oct 17, 2024 10 tweets 2 min read
#NFL Injury Updates:

#Rams Cooper Kupp - Wk 7 TBD. Data slightly favors sitting, return Wk 8. Video below has more

#Giants Malik Nabers - Likely return Wk 7. No dip

#Patriots Drake Maye - Likely injured today. MRI pending. Doesn't necessarily mean major problem

1/10 #Browns Nick Chubb - FP. Likely playing Wk 7. Data projects ~25-50% workload + efficiency dip

#Packers Jayden Reed - LP. Anklee. Left + returned mid-Wk 6, but w/limited production. Data favors playing + mild dip Wk 7

#Saints Derek Carr - Oblique. Chance to return Wk 8

2/10
Oct 7, 2024 9 tweets 2 min read
#NFL Injury Updates:

#Texans Nico Collins - Re-aggravation avg = 2 wks. Video + comments suggest mild severity. Lean towards Wk 6-7 return. Practice = key

#Dolphins DeVon Achane - Concussion avg = 1 wk out. Wk 6 bye means most likely playing Wk 7 w/o missed time

1/9
#Chiefs Rashee Rice - Lean towards season over. Getting exam while in surgery Mon. Injury mechanism + initial concerns for ACL suggest knee is unstable. Best case ~6 wks

#49ers Christian McCaffrey - Avg ramp up = 4-6 wks. Lean towards Wk 8-10 return. High re-injury risk

2/9
Sep 17, 2024 10 tweets 2 min read
#NFL Injury Updates:

#Rams Cooper Kupp - Comments suggest severe high ankle. Avg = 5 wks. Age>30 predicts slower return. Lean towards ~Wk 8 return w/high re-injury risk

#49ers Deebo Samuel - WR calf avg = 2-3 wks. Problem = HIGH re-injury risk. Lean towards ~Wk 6 return

1/10 #Eagles AJ Brown - WR hamstring avg = 2 wks. Limited info on severity. Data slightly favors missing Wk 3 but Wed + Thurs practice reports = key. High re-injury risk next 6-8 wks

#Chiefs Isiah Pacheco - Reports = 6-8 wks. Data leans towards 8, but w/major dip for '24

2/10
Aug 15, 2024 10 tweets 2 min read
#NFL Injury Updates:

#Vikings Jordan Addison - Reports suggest low concern. Data favors Wk 1 return at ~100%. WRs carry mildly elevated re-injury risk 1st 3 wks back

#49ers Christian McCaffrey - Likely playing Wk 1 at ~100%. Slightly elevated re-injury risk thru Wk 4

1/10 #Lions Jahmyr Gibbs - Data favors playing Wk 1 at 90% efficiency. RBs do tend to see fewer touches upon initial return. In-season risk 25% higher than avg RB

#Rams Matthew Stafford - Hamstring "tightness" suggests one level below "strain". Low concern at this point

2/10
Aug 12, 2024 11 tweets 2 min read
#NFL Injury FAQ:

#Packers MarShawn Lloyd - Re-aggravation = worse than 1st time. Avg = 3 wks. Data favors playing Wk 1 but w/moderate re-injury risk thru Wk 6

#Chargers Justin Herbert - Unlikely to miss time. May see decreased mobility if foot flares up in-season

1/11 #Giants Malik Nabers - Reports suggest mild ankle sprain. If so, wouldn't expect any performance hit or lingering injury risk by Wk 1

#Steelers Roman Wilson - Images suggested high ankle. Data projects 90% by Wk 1 but re-aggravation risk elevated thru ~Wk 2

2/11
Oct 28, 2023 24 tweets 4 min read
#NFL Injury Updates:

#Dolphins Tyreek Hill - Playing. Likely was conservative management to miss practice. Data projects low performance impact

#49ers Brock Purdy - Rare, but on pace to play. Had clear performance dip Wk 7 after what was presumably hit that caused injury

1/24 #Bengals Joe Burrow - Expect major improvements in mobility and scrambling. Re-injury risk still elevated x2 weeks

#Chargers Austin Ekeler - Wk 7 video suggested new low ankle but practice participation suggests very minor. Expect 100% efficiency w/o workload limits

2/24
Oct 24, 2023 15 tweets 3 min read
#NFL Injury Updates:

#Packers Christian Watson - Comments suggest mild knee sprain. Avg = 2 wks but he will likely attempt to play Wk 8 w/mild performance hit

#Chargers Austin Ekeler - Picked up new low ankle sprain. Most don't cause missed games but do lower RB workload

1/15 #Eagles Jalen Hurts - QB knee data = favorable. Likely playing Wk 8 w/o stats dip. But highlights concerns about rushing QB playing style causing durability issues

#Dolphins Jaylen Waddle - Likely playing Wk 8, low stats impact. Mild re-aggravation risk next 3-4 wks

2/15
Oct 23, 2023 5 tweets 1 min read
#NFL Injury Updates:

#Packers Christian Watson - Concern for ACL +/- MCL/meniscus. Best case = sprain (MCL +/- bone bruise) - that would avg 2-3 wks. MRI tomorrow

#49ers Christian McCaffrey - Data suggests low per-touch efficiency impact but fewer touches if SF in control

1/5
#49ers Deebo Samuel - Likely return Wk 10 (Wk 9 = bye). Fracture pain improves a lot over 3-4 wks so don't expect stats dip upon return

#Browns Jerome Ford - Video + boot suggests high ankle. Avg = 3 wks out but his looked mild since foot wasn't planted. Lean 2 wks for now

2/5
Oct 17, 2023 24 tweets 4 min read
#NFL Injury Updates:

#49ers Christian McCaffrey - Most of these aren't long injuries. MRI pending but avg = 1-2 wks + low performance impact

#Bears Justin Fields - Swelling = expected. Likely know if surgery right away. If no surgery, expect 2-3 wk absence

1/24 #49ers Deebo Samuel - Avg = 1-2 wks but Deebo typically plays thru minor injury. Lean towards playing Wk 7 + mild performance hit

#Giants Saquon Barkley - Star RB data from high ankle generally progresses from 80 - 90 - 90 - 100% efficiency. Wk 7 = second week of that

2/24
Sep 9, 2023 14 tweets 3 min read
#NFL Injury Updates:

#Giants Darren Waller - TBD. Lean towards playing. Comments = mild severity. Data suggests low stats impact, high injury risk for year

#Jets Breece Hall - Our algorithm projects 85% explosiveness, 40% of normal workload. Data suggests full load ~Wk 4

1/14 #Ravens Mark Andrews - TBD. Lean towards playing. Moderate quad strain data says low performance dip but ~15% re-aggravation risk

#Broncos Jerry Jeudy - TBD. Data says 60% chance of playing. If active, has HIGH (~20-25%) re-injury risk, moderate (~15%) performance hit

2/14
Sep 7, 2023 6 tweets 1 min read
#NFL Injury Updates:

#Chiefs Travis Kelce - Could inject knee & play well vs Lions. But would have HIGH injury risk. Data favors sitting Wk 1, return Wk 2

#Rams Cooper Kupp - Data predicts Wk 3 return. Nerve recovers slower if involved. IR possible, but would be outlier

1/6
#Broncos Jerry Jeudy - Possible to play Wk 1, but hustling back brings ~25% re-injury risk. Data favors Wk 2 return. Moderate explosiveness dip initially

#49ers George Kittle - Trajectory + history of playing thru injury favor playing Wk 1. Low performance impact if active

2/6
Aug 23, 2023 7 tweets 1 min read
Data-driven draft strategy:

Round 1:

(1) WRs > RBs. 15-20% less likely to miss games

Full send: Justin Jefferson, Ja'Marr Chase, Tyreek Hill, Stefon Diggs

1/7
Round 1:

(2) Caution on:

Cooper Kupp - Hamstring = 15% recurrence. Stafford = high risk if O line is weak again

Travis Kelce, Austin Ekeler, Derrick Henry- Age = injury risk factor for position

2/7
Aug 10, 2023 6 tweets 1 min read
#FantasyFootball Injury risk categories to know.

(1) Zero hesitation on WRs who consistently line up wide:

Justin Jefferson
Ja'Marr Chase
Tyreek Hill
Stefon Diggs
Davante Adams

1/6
(2) Relatively safe = RBs who get touches through receptions:

Christian McCaffrey
Austin Ekeler
Bijan Robinson
Saquon Barkley

2/6
Aug 8, 2023 8 tweets 2 min read
#NFL Injury Updates:

#Rams Cooper Kupp – Comments suggest low severity. Highly likely to return by Wk 1 at 100%. Mildly increased re-injury risk.

#Bengals Joe Burrow – Expect return by Wk 1 at 100%. Progress so far implies low severity, relatively low re-injury risk.

1/8
#Chiefs Isiah Pacheco – Expect clearance in ~2 wks. RBs off of labrum repair return at ~100%, no major re-injury risk.

#Chiefs Kadarius Toney – Expect return 3-4 wks. No performance hit expected upon return.

2/8
Aug 3, 2023 5 tweets 1 min read
Injury-related #NFL sleepers:

Tua Tagovailoa
Isiah Pacheco
Travis Etienne
Justin Herbert

1/5
#Dolphins Tua Tagovailoa – Despite concussion history, don’t see stats dip upon return

Any future concussion from here likely = 2-4 wks + potential career-ender

QB health correlates w/number of hits. Armstead at 100% + drafting Achane + emphasis on quick passing all help

2/5
Aug 1, 2023 8 tweets 2 min read
#NFL Injury Updates:

Needs monitoring:
Zach Charbonnet
Jalen Ramsey

Week 1 possible:
Von Miller
Breece Hall

Week 1 unlikely:
Kyler Murray

Low concern:
Kyle Pitts
KJ Hamler
Zack Moss
Terron Armstead

Dynasty roster questions:
Tim Patrick

1/8
#Seahawks Zach Charbonnet – Most common RB shoulder injury = instability. His never dislocated. Typically means partial dislocation + labrum tear

Most RBs play thru w/re-injury risk, no stats dip

2nd opinion = considering surgery (4-6 months). Often can delay til offseason

2/8