A pep talk from his caddie made all the difference for Justin Thomas as he collected his second Major title after staging an incredible comeback to win the PGA Championship on Sunday.

The American was seven shots back at the start of the final round in Tulsa but clawed his way up the leader board before besting compatriot Will Zalatoris in a three-hole playoff.

Thomas, who also won the tournament in 2017, said his caddie Jim “Bones” Mackay had put him back on track after carding a frustrating four-over 74 in the Saturday’s third round...