The data supports increased velo, and increased velo leads to more stress on those ligaments. The Rays are one of the smartest clubs in baseball when it comes to data/development. Coincidentally, the Guardians are arguably MLB's best when it comes to developing young pitchers, and they've had issues with major teres muscle strains (upper back/lower shoulder) for whatever reason, and Triston McKenzie is hoping to avoid TJ, but may be next to need it. Just interesting that two of baseball's best when it comes to developing pitchers and using analytics have struggled with this stuff more than some other clubs.