Dustin Johnson in the groove at Sawgrass after opening round

Dustin Johnson got to world No 1 by combining scintillating wedge play with enormous power and precision iron play.

Now, he’s looking to add deadly putting to his arsenal of weapons after a move to the AimPoint green-reading method helped him grab an early share of the lead in The Players in Florida.

While there are endless permutations, five players could claim Johnson’s world number one throne with a win at TPC Sawgrass in Jacksonville: Justin Thomas, Jon Rahm, Justin Rose, Jordan Spieth and Jason Day.