The most successful coaches of all time in sports

Richard Williams (Tennis)

The Williams sister owe much of their success to father and coach Richard Williams (Getty Images)

Both the father and professional coach of Venus and Serena, Williams has coached his daughters to an unprecedented number of tennis championship wins.

The pair have dominated the women’s game for several years, and general consensus is that it was Richard Williams’ tenacity, impeccably high standards and motivational ability that was the driving factor behind their success.

He’s claimed in the past that theirs is a rags-to-riches story, recounting stories of tennis practice in gang-land Los Angeles with the sound of gunfire in the distance, which have been met with some scepticism.

However, his achievements are unarguably inspiring – after hearing how much tennis players earned, he taught himself tennis and then taught his daughters, relentlessly driving them forward from obscurity to international domination of the sport.