The 2021 Yankees have had 11 players miss time this season due to an issue with their hamstrings or low back. Roster numbers are dynamic as the season progresses obviously, but however you want to slice it that’s a good chunk of the Yankees’ roster who’ve had problems with hamstrings and low backs.
You may be wondering why I’m lumping hamstrings and low back issues together, and you might be asking “Is there a connection between hamstring issues and low back issues?” The answer is yes, quite literally. If you’ve read my articles before, then you know I love to paraphrase Russell Carleton of Baseball Prospectus:
Warning: Gory biomechanical details ahead!