Football. Manchester United's George Best is tackled by Wolverhampton Wanderer's McCalliog from behind during their league match at Old Trafford, 1971. [Getty Images]

Football, Manchester United's George Best is tackled by Wolverhampton Wanderer's McCalliog from behind during their league match at Old Trafford, 1971. (Photo by Bob Thomas Sports Photography via Getty Images)

Bob Thomas Sports Photography Bob Thomas