Silvis, Illinois:Masters champion Zach Johnson shot an even-par 71 for a 36-hole total of 141, 11 behind leader Nathan Green and one off the cut, leaving the John Deere Classic without its main attraction on Friday.
Green grabbed the lead with a second-round 63 that had him one stroke in front of Jason Dufner (66) and Carl Pettersson (64). First-round leader Neal Lancaster (68) was two strokes back.
Green, an Australian seeking his first tour victory, grabbed the lead on 17 when he knocked in a 4-foot putt for birdie - his eighth of the day - to go 12 under.
He spent three weeks relaxing at home in New South Wales after missing the cut at the US Open. The time off helped.
"I was just happy to be playing golf again," Green said. "Before I went home, the US Open was my last event and I was frustrated and stressed out and not really enjoying playing. That was the reason for the break."
With many of the top golfers overseas preparing for next week's British Open, the Deere Classic attract a field full of unknowns and faded stars. One exception was Johnson, a two-time winner this year, including the year's first major.
Also missing the cut were Lee Janzen (even), John Daly (6 over) and defending champion John Senden of Australia (7 over).