How well will Spieth rebound at Oakmont from Masters meltdown?

Jun 5, 2016; Dublin, OH, USA; Jordan Spieth reacts after hitting the ball onto the fourteenth hole during the final round of The Memorial Tournament at Muirfield Village Golf Club. Mandatory Credit: Joe Maiorana-USA TODAY Sports

(Reuters) - Jordan Spieth will launch his U.S. Open title defence next week at Oakmont where, in the eyes of some, a question mark will be hovering over his ability to rebound from his shocking back-nine collapse at the Masters in April.

Though he won his eighth PGA Tour title at last month's Colonial tournament in just his third start since the Masters, major championship pressure is intense and Spieth will also have to contend with lofty expectations as the defending champion.