Vijay Singh and Bob Estes are currently tied for the overall lead at the 2012 Barclays championship at 7-under par. Singh recorded three birdies through the front-nine to pull within one shot of then leader Padraig Harrington and managed to tack on the tying stroke on the final hole.
Harrington has since dropped to a 5-under par after recording consecutive bogeys to begin his second round.
Estes on the other hand has recorded a 5-under par in his second round alone and with two holes remaining has a chance to pass Singh for the lead if he is able to register another birdie.
Singh and Estes aren't the only players making an aggressive move to the top, though. New York born John Huh registered six birdies on the way to a 4-under in his second round to pull two shots off the lead with an overall score of 5-under.
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