Muhammad Ali outside Joe Frazier's training headquarters 1971
What year was this photograph taken? Study it, then reveal the answer below — or play it as a round and see how much HP you keep.
PHILADELPHIA, PA.: Muhammad Ali. a man not easily scared, feigns terror at the sight of defending heavyweight champion Joe Frazier. Frazier was about to begin a workout for his March 8th bout when the intruder showed up at his training headquarters. Ali did not say whether he was startled by Frazier's muscles or his shirt.
