From Curt Schilling to Terrell Owens, meet the ten groin-kicking, preening, backstabbing athletes you most love to hate.

10. Lleyton Hewitt

To our minds, Lleyton Hewitt’s obsession with Rocky is reason enough to put the Aussie tennis star on the list (the dude fires himself up on the court by shouting, “C’mon, Rock!“), but it’s his race-baiting during the 2001 U.S. Open that really seals the deal. Serving in the third set against American James Blake, Hewitt was called for multiple foot faults by a black linesman. Incensed, he approached the chair umpire and, pointing first to the offending linesman and then to Blake, said, “Look at him and you tell me what the similarity is.“ “It was a terrible act,“ says tennis sage Bud Collins. “Everybody knew what he meant.“

“The thing is, he’s a big foot faulter,“ adds former pro and current analyst Mary Carillo. “So the idea that all of a sudden, in the heat of a match, he’s getting called for it out of racial bias was ridiculous.

“He makes guys crazy,“ Carillo adds. “They try hard to ignore him, but he’s always barking on the other side of the net.“ In his 2005 Australian Open match against Argentine Juan Ignacio Chela, Hewitt so enraged Chela with his frenzied celebration of an unforced error that Chela fired a serve directly at him, then spat at him during a changeover.

“We all know how Lleyton is,“ said another Argentine player, Guillermo Coria. “He can be the best player in the world, win every tournament, but I would not want to be like him.“ Hewitt, Coria added, is disliked “by every other player on the international circuit.“

Hewitt isn’t even popular in his native Australia. He has been booed in his hometown, and after the incident with Chela, one Australian paper proclaimed, “Many regretted [the spit] did not find its target.“

9. A. J. Pierzynski

Google the phrase clubhouse cancer and the rst two results will be stories about Chicago White Sox catcher A. J. Pierzynski. Teammates and members of the media use those words and others—unprofessional, immature, arrogant, aloof—to describe him. His baseball misdemeanors are legion: chirping at the opposition, bitterly contesting balls and strikes (very stupid for a catcher, who must win goodwill for his pitcher), and venting his frustrations on opposing rst basemen. “He doesn’t have a lot of baseball etiquette,“ says one ex-teammate. “He’ll deliberately step on your foot at rst base, then say, Man, I didn’t mean to do that!’ “

The most telling of the many, many (seriously, you wouldn’t believe how willing people were to talk about this guy) Pierzynski anecdotes we heard took place during spring training in 2004. Pierzynski, crouched behind the plate, took a pitch to the groin. Rushing to his aid, trainer Stan Conte asked him how he felt. “Like this!“ Pierzynski grunted, then savagely kneed Conte in the balls.

“You just want to choke him,“ says the ex-teammate, who has also played against him. “You want your pitcher to hit him in the head.“

8. Phil Mickelson

Last August at the PGA Championship at Baltusrol, in New Jersey, a reporter turned to a golfer on the tour and said of Phil Mickelson, “Man, the fans here love Phil.“ The golfer replied, “They don’t know him the way we do.“ It blew our minds a little when we heard this, since Mickelson ranks among the most admired golfers in America. But today the same reporter makes his case bluntly: “Phil Mickelson literally has no friends out there. He annoys everybody.“