MMMD 1: Tom Brady violates contract?
MMMD 2: How did Aaron Hernandez avoid testing positive for marijuana?
MMMD 3: Combines do test for substances of abuse
MMMD 4: Current helmet sensors not reliable to detect concussions
MMMD 5: Sammy Watkins hip surgery
MMMD 6: USC reaches settlement with former player over Toradol use
MMMD 7: Veteran Combine players signed
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Dr. David Chao is a former NFL head team physician with 17 years of sideline, locker and training room experience. He currently has a successful orthopedic/sports medicine practice in San Diego.