A familiar and longlasting complaint among New York Yankees fans has directly dealt with Gary Sanchez’s defense. This mainly comes from his troubles when blocking the ball.
Sanchez heard those complaints and made an effort to improve his blocking ability. In the process, Sanchez did get better at blocking the ball, but regressed at everything else.
New catching coach Tanner Swanson is tasked to improve Gary Sanchez’s defense to the level it was at before.
Framing is more Important than Blocking
Despite what some people may tell you, the most important job of a catcher defensively is to be able to frame well.