Sergio Garcia has put his recent withdrawal from an Open qualifying event in Texas behind him and put himself in contention to claim the Byron Nelson Championship.
The Spaniard, who has been suffering with an infected fingernail, was still doubtful to tee off on Thursday morning but his doubts proved to be unfounded.
On the second hole of the day the world number 73, who has been in a form slump, holed his second shot from 116 yards for an eagle.
"The only thing I can do is try my best, then hopefully I can go through my rounds and start thinking positively and feeling good about the game, Garcia said.
With such a lightning start Garcia went on to card an opening round of 66 just two shots off the lead held by Jeff Overton.
The Spaniard has not claimed a tournament victory since 2008 but his form appears to be improving as he has racked up four top 20 finishes in his last six outings.