Michael Riley "Doc" Powers (September 22, 1870 – April 26, 1909) was an American Major League Baseball player who caught for four teams from 1898 to 1909.

Powers' nickname was derived honestly from the fact he was a licensed physician as well as a ballplayer.

[2] During a brief stint with the New York Highlanders in 1905, Powers caught while Jim "Doc" Newton pitched, creating the only known example of a two-physician battery in Major League history.

[3] On April 12, 1909, Powers was injured during the first game played in Philadelphia's Shibe Park, crashing into a wall while chasing a foul pop-up.

He sustained internal injuries from the collision and died two weeks later from complications from three intestinal surgeries, becoming possibly the first Major Leaguer to suffer an on-field injury that eventually led to his death.