The Michigan Wolverines defeated the Notre Dame Fighting Irish Saturday night, 41-30 — and then celebrated by playing some polka. Here, the Irish's Chris Brown is tackled by Michigan's Delonte Hollowell after making a catch.
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Tim Tebow (right) shakes hands with New England Patriots quarterback Tom Brady after the Patriots defeated the Broncos on Dec. 18, 2011. Now, they're due to be teammates.
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Oklahoma quarterback Steve Davis, left, and coach Barry Switzer celebrate the team's No. 1 ranking after the Orange Bowl in 1976. Davis, 60, died Sunday in the crash of a small plane. Switzer called Davis a "great role model for young people."
Linebacker Ray Lewis announced Wednesday that he will retire after the Baltimore Ravens' season ends. Most media coverage of Lewis' legacy has omitted his part in a 2000 double-homicide case.
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Dr. Ann McKee, professor of neurology and pathology of Boston University School of Medicine and co-director of the Veterans Affairs Center for the Study of Traumatic Encephalopathy, inspects a brain in the Bedford Veteran Medical Center last year.
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Denver Broncos Coach John Fox yells at field judge Jimmy Buchanan during the Broncos' game against Atlanta Monday. Referring to the game, the NFL insisted that players and coaches give replacement referees, and the game, more respect.
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