"My attitude is fresher," Stricker said. "Just getting it right in my mind at the start of the year that this is what I wanted to do was a big step in my own mind, knowing that I am doing the right thing. And I feel good about what I'm doing. That helps me play the way I've been playing."
Bradley will be making his John Deere Classic debut and is seeking his first win of the year. Watney will also be looking for a breakthrough after missing three straight cuts from mid-May to Merion.
Jonas Blixt initially said he intended to return to his native Sweden after winning last week's Greenbrier Classic. But Blixt remains scheduled to tee off Thursday with Watney and Oosthuizen.
Perhaps no one in the field will have more fun this weekend than Oosthuizen.
The South African is a self-described "farm boy" with an affinity for John Deere equipment. Oosthuizen celebrated his 2010 British Open by buying a John Deere tractor, and he even brought family and friends to the Quad Cities this week so they could tour the company's facilities.
"I've still got quite a bit of passion for golf. But John Deere and farming is not far off," Oosthuizen said.