Thread by @ComradeArthur

(Can't find the video online)
To show how pitchers used scuffballs and similar gimmicks to throw super-nasty pitches NBC had Don Sutton (wearing a mask) demonstrate the craft.
To further disguise him, they reversed the image so he looked like a left-hander.

IIRC MLB was not amused and gave him a short suspension (he was still an active pitcher).
Also, Sutton was regarded as a master at exploiting a baseball that had scuffs. Some say he even may have possibly scuffed the ball himself!

RIP hoss.

In his last year in baseball (1988) Sutton had a Dodger comeback. Stats were not good HOWEVER, if had pitched with the same ability in 2020 he would have been regarded as a good starter ... assuming he was used as starters were used in 2020.

Basically, he ran out of gas after 60 pitches. In 1988, for the first 4 innings or so, he was damn good. And, in 2020, lots of starting pitchers were only expected to go 4-5 innings.

"“I’ll never say what I do or don’t do to the ball,” he said. “If they think I’m cutting it up, fine. It gives them one more thing to worry about."
dodgerthoughts.com/2021/01/19/far…

"umpires reached into Sutton’s uniform pockets in pursuit of incriminating evidence, recovering notes that read NOT HERE or YOU’RE GETTING WARMER."

"Accused of moistening the baseball with a “foreign substance,” Sutton zippily denied it.

“Not true at all,” he said. “Vaseline is manufactured right here in the United States of America.” "

(1974 NLCS)

If it's unclear from those quotes, everybody knew Sutton doctored the ball. But he was REALLY REALLY good at hiding it. Better than Gaylord Perry!