Phil Mickelson insists the wrist injury which forced him to withdraw from the Memorial tournament in Ohio yesterday will not keep him out of the US Open.
"Lefty" pulled out after just 11 holes of yesterday's opening round at Dublin's Muirfield Village because of problems with his left wrist.
The American was two over par at the time, having suffered a double bogey at the par-three eighth hole and a bogey at the par-five 11th.
It is a worry, with the US Open starting at Oakmont on June 14th - but Mickelson allayed fears he may not be fit to compete in the major.
He said: "I don't think it's anything serious. I'll take a couple of days off, see if I can ice it and get it ready for the US Open."
Meanwhile, Sean O'Hair birdied eight of the first 13 holes on his way to the clubhouse lead at seven-under-par 65.
O'Hair - whose only bogey came at the par-four 17th after a poor tee shot - led Ernie Els, Aaron Baddeley and Tim Herron by one shot with half the field back in the clubhouse.
"I started hitting the ball well from the beginning of the day," said O'Hair.
"I rolled the ball great (on the greens). My speed control was really good, I didn't get too aggressive."
