The PGA of America has apologised after fans surrounded Phil Mickelson and Brooks Koepka on the final hole of the US PGA Championship at Kiawah Island.

Despite the Covid-19 pandemic, spectators swamped the American pair on the way to the 18th green and winner Mickelson, 50, said it was “unnerving”.

Koepka recently had knee surgery and said he “got dinged a few times in the knee in that crowd”.

PGA of America chief executive Seth Waugh has<title