Meister determined he needed Tommy John surgery, which involves taking a tendon from elsewhere in the body and using it to replace the damaged one, in this case the ulnar collateral ligament. As part of the surgery, Meister added an internal brace, which could potentially speed Maeda’s recovery, Twins manager Rocco Baldelli said, from nine to …
https://www.pinejournal.com/sports/baseball/7177711-Kenta-Maeda-undergoes-Tommy-John-surgery

