By Ben James Jun 22, 2009, 0:50 GMT
Farmingdale, New York - Americans Ricky Barnes and Lucas Glover were tied for the lead at the end of another rain-hit day of the US Open, which now goes into a Monday finish.
Having played just one hole of their final round, both men were level on 7-under-par, five shots clear of four men including Mickelson, while defending champion Tiger Woods was just two shots further back on level par through seven holes.
As it did on the opening day, the rain interrupted proceedings and the tournament was forced into a Monday finish, weather permitting.
Barnes led by one shot after the completion of the third round but the nerves were clearly there when he came back out, with a bogey at the first dropping him back into a share with Glover.
Both men had fired level-par 70s in the third round, but Barnes is in trouble on the second hole and will do well to make par when he resumes play on Monday morning.
And having reached 11-under-par after an eagle at the fourth hole in round three, and led by six shots at one stage, Barnes may be feeling the pressure of being in front in a major for the first time at this stage.
Glover survived a mid third-round wobble to end on 7-under and he parred the first hole in his final round to stay there.
If the top two falter on Monday, then the chasing pack is stacking up behind them, with four-time runner-up Mickelson, David Duval, Hunter Mahan and Englishman Ross Fisher all on 2-under.
Mickelson, undoubtedly the favourite with a boisterous New York crowd, parred the first two holes of his final round, having rallied in round three with four birdies in his final six holes.
And no one will rest easy until Woods is in the clubhouse and out of the hunt, for the world No 1 birdied the seventh hole to get back to level par, seven shots off the pace.
Two-time US Open champion Retief Goosen is also still in with a chance, alongside Woods on level par through three holes, while former Masters champion Mike Weir is a shot better off on 1-under.
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