Zach Johnson eyes his lie at the 18th green in the second round of the Chevron World Challenge...

Zach Johnson tees off on the fifth hole in the second round of the Chevron World Challenge golf...

Zach Johnson chips from the rough in the gallery on the fifth green in the second round of...

Playing partners Ian Poulter of Great Britain, left, and Zach Johnson talk as they walk the fourth fairway in the second round of the Chevron World Challenge...

...July 2, 2009 in Bethesda, Maryland (Photo by Mitchell Layton/Getty Images) DUBLIN, OH - JUNE 05: Zach Johnson hits his tee shot on the 18th hole during the second round of the Memorial Tournament...

Zach Johnson, right, was among many players who flew over from the John Deere Classic to the British...

Tiger Woods watches a shot by Zach Johnson on the 14th tee during the second round of the Memorial golf tournament, Friday, June 5...

SAN ANTONIO TX - MAY 17: Zach Johnson tees off the 9th hole during the fourth and final round of the Valero Texas Open...

Zach Johnson, of Cedar Rapids, Iowa, kisses his trophy after winning the Texas Open golf tournament in San...

Zach Johnson watches his drive off the first tee during the final round of the Texas Open in...

Zach Johnson, of Cedar Rapids, Iowa, waves to the crowd on the 18th hole as he finished the...

Defending champion Zach Johnson of Cedar Rapids, Iowa, hits his drive on the first hole during the third round of...

SAN ANTONIO - OCTOBER 11: Zach Johnson during the third round of the Valero Texas Open held at La Cantera Golf Club on...

CHARLOTTE, NC - MAY 02: Zach Johnson hits his tee shot on the fourth hole during the third round of the Quail Hollow...

SCOTTSDALE, AZ - JANUARY 29: Zach Johnson hits his tee shot on the 11th hole during the first round of the FBR Open...