The day after Tiger Woods was spoken to by officials at the Masters defending champion Phil Mickelson had the same thing happen to him.

It was a very different problem, though.

Woods was involved in a rules inquiry over a tap-in putt, but did not receive a two-stroke penalty because the television evidence was "inconclusive."

Mickelson was questioned about the spikes on his golf shoes after Vijay Singh, playing in the group behind, told a referee he thought the left-hander had caused spike marks on the 12th green.

On inspection it was decided that the shoes did not need changing.