Some players, like Joey Barton, are just hated by football players and fans alike.
Whether it be a bad attitude, lazy work ethic or questionable morals, these players just don't get along with their teammates.
Here are the top 10 players on the transfer market that no fan wants to see in their team's colors next year.
Richard Dunne will most likely stick with Aston Villa for the upcoming season, but his future has been up in the air ever since his deteriorating relationship with former boss Gerard Houllier disrupted Villa's season last year.
But Dunne's track record earns him a spot on this list.
The Irishman is an extremely aggressive tackler, and has eight career red cards show for it.
He also has accumulated seven own goals, which hasn't earned him much favor with the fans.
To be fair, Dunne is much more disciplined these days. But his rogue youth continues to plague him—fans like him best when they see his back.
Jose Bosingwa lost some of his luster in Porto when his reckless driving led to a gruesome traffic accident that resulted in one of his teammates needing a foot amputation.
If that weren't enough, Bosingwa insists on bringing his temper on to the pitch. His worst moment occurred when he blatantly kicked Yossi Benayoun in the back.
Funny enough, the two are now on the same team. I wonder how that's working out for them?
Emmanuel Adebayor could conceivably return to Real Madrid once again this year, but has also been connected to Blackburn.
Regardless of where he ends up, Adebayor will undoubtedly find ways to irritate fans to no end.
The Togolese striker frustrated Arsenal fans with his lazy attitude, and proceeded to leave the club for Man City in a very ungracious manner.
To make matters worse, after scoring in a game against the Gunners, Adebayor sprinted across the field to celebrate in front of Arsenal faithful, a classless gesture that makes him one of the most disliked players around the world.
El Hadji Diouf is very good at being hated.
Everywhere he has gone, he has managed to anger everyone around him with his arrogant attitude.
Arrogance is frustrating in general, but downright infuriating when it's unwarranted.
Diouf might one day figure out that his mediocre skill can't support his enormous ego.
Marco Materazzi, who may be headed to Queens Park Rangers this summer, is the infamous recipient of the world's most famous headbutt.
The Italian defender made some derogatory comments about Zidane's sister, as confirmed by USA Today, which prompted a violent response from the French legend.
Materazzi proceeded to shamelessly roll around on the ground, clutching his face, even though he was clearly struck in the chest.
It did not seem to bother Materazzi that his dramatic agony, combined with a lack of blood on his face, made it quite evident that he was faking it, or at least drastically exaggerating the incident.
Sure enough, right after the red card came out, Materazzi was back on his feet, healthy as can be, prompting some doctors to investigate the seemingly miraculous healing powers of bookings.
The former English international has bounced between the United States and Europe for quite some time now, but does it with such ill grace that we have to hate him for it.
Beckham is way past his prime and should just bow out of football.
Ashley Cole has no concept of boundaries.
Back in 2005, he somehow ended up in the same hotel as Jose Mourinho and Peter Kenyon of Chelsea in a not very subtle way to finagle a move to Samford Bridge. He tried to play the whole thing off as a coincidence.
On the pitch, he is quite the whiner, petulantly complaining about calls when he commits blatantly cheap fouls.
Best of all though are his off-the-pitch antics.
Last February Cole shot and wounded a 21-year-old intern at Chelsea's practice facilities with a rifle.
The incident makes you imagine what goes through Cole's head on a day-to-day basis. What possibly could have made Cole think it was okay to wander around his workplace with a loaded rifle?
The poor intern probably just wanted an autograph—and instead got a bullet to the leg.
Didier Drogba isn't exactly a great role model.
The Ivory Coast International is a terrible teammate and seems utterly uninterested in passing unless absolutely necessary. He would much prefer to score himself and get all the credit.
The Chelsea striker is a renowned diver, mostly because he fashions himself a free kick-taker extraordinaire. It's enjoyable to watch how upset Drogba gets when Frank Lampard decides he wants to take the shot.
Drogba is the antithesis of a team player and is hated by fans and players alike.
Joey Barton has made a long list of enemies.
Between karate-kicking Etuh, aggressively sliding into Alonso in the corner and punching Morten Gamst Pedersen in the chest, Barton has done everything but show gracious behavior on the pitch.
Off the pitch he isn't much better—like when he stuck a lit cigar into Jamie Tandy's eye.
Barton has accrued a criminal record, including breaking a pedestrian's leg by driving through Liverpool at two in the morning, as noted by the Daily Mail. He is known to be an alcoholic, and seems to do little to keep his drinking in check.
It's safe to say Joey Barton is the most hated player on the transfer market.