Phil Mickelson will no doubt be packing his favourite Callaway golf shirts as he prepares to defend his Masters title later this week.
Mickelson heads to Augusta National on the back of a victory in the recent Houston Open and is looking to pick up his fourth Masters title after victories in 2004, 2006 and 2010.
Callaway shod Mickelson, closed the Houston Open with rounds of 63 and 65 to shoot a tournament-record 20-under-par at Redstone Golf Club in Humble, Texas, three strokes ahead of the field.
The victory in Houston catapulted Mickelson to number three in the world and moved him ahead of long-term rival Tiger Woods for the first time since 1997.
One man looking to set the Augusta course alight with his golf and his own IJP design clothes is Ian Poulter who is hoping to banish memories of his disastrous third and fourth rounds last year which saw him relinquish the lead and finish tied for tenth place.