German Marquez (elbow) worried he may need Tommy John surgery - German Marquez News
Trivino & Marquez to have Tommy John Surgery
Rockies right-hander German Marquez to have Tommy John surgery - ESPN
Germán Márquez injury could put Colorado Rockies in a tailspin if their ace needs Tommy John surgery
Corey Seager to have Tommy John surgery
Rockies right-hander German Marquez to have Tommy John surgery - ESPN
Germán Márquez injury could put Colorado Rockies in a tailspin if their ace needs Tommy John surgery
An Overview of Tommy John Surgery
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On this date in 1974: Dr. Frank Jobe performs first Tommy John surgery