Four birdies in his closing seven holes saw Rory McIlroy recover to lie level par after round two and ensure his participation in the final two rounds of the US PGA Championship at Oak Hill.
The defending champion had posted an opening one-under-par 69 but fell back to four over for the tournament at one stage before bouncing back for a 71.
Graeme McDowell is one under, eight off the lead, after recording a 69.
Darren Clarke is two over following a 73 but looks set to make the cut.
Jason Dufner leads on nine under thanks to a 63, with Masters champion Adam Scott and Matt Kuchar seven under in the clubhouse.
McIlroy's round included five birdies, four bogeys and a double bogey.
"The rain came down heavily at one point and it made the course play long," explained McIlroy after completing his 18 holes.
"I missed a few fairways but made some good birdies coming in to get myself back in the tournament.
"It's all about keeping the ball in play off the tee and to play the last few holes the way I did puts me in a very positive frame of mind.
"It cheers me up a bit going into the weekend," added the world number three.
McDowell fired two birdies, with just one bogey blotting his scorecard, but the Portrush player suffered a frustrating day on the greens, missing a number of putts for birdies.
2011 Open champion Clarke carded two birdies, two bogeys and a triple bogey at the fifth hole in his 18 holes.