The reports started trickling out. First from Red Sox radio broadcaster Lou Merloni on Tuesday, the day after the 16-1 laugher that put the Yankees’ season on the brink. Then again on Thursday from Fancred’s Jon Heyman, the day after the Yankees were eliminated from the postseason.



In Friday’s end of the season press conference, Aaron Boone admitted that he also believed Luis Severino was tipping his pitches at points in the second half of the season.



“I think it has happened at times,” Boone said Friday. “I think he’s done a good job of correcting it, but I think it would pop up from time to time. And it’s something that we will address even more so this winter in trying to eliminate any chance of that happening.”



Is this the reason why — among over 50 pitchers who were qualified in the first half and threw 60 innings in the second half — Severino’s drop in ERA from 2.31 in the first...