Assuming that Salah & Trent are locked in in most FH teams, picking Robertson means a defensive double-up. That in itself is fine, Liverpool have a 54% chance of a CS, but the fixture (NFO) screams goals, so there could be more upside in attackers.
Diogo Jota is back from injury and returned a 16-pointer (2 G, 1 A) vs Leeds. The upside with him is very, very high but the main issue is that he’s a minutes risk and could get benched/taken off early for Darwin Nunez. He also takes one of the three valuable forward spots.
Grealish has now started 11 PL games in a row for City, and with Phil Foden injured it looks like Grealish is relatively nailed to start as LW. There’s always a risk with City players, but his xMins are solid.
Since the departure of Cancelo, Grealish has taken on a more direct role in the attack, & 11 of his 13 attacking returns this season have come since the restart. Man City are capable of scoring 3+ goals in any game, and bringing Grealish in ensures a larger share of those points.