Teammates turning on each other is arguably one of the worst things that could happen to a team, but despite its relatively rare occurence, it does still happen.
Here are 9 incidents of players going at it that will make you shake your head in disbelief...
9. Jamie Carragher vs Alvaro Arbeloa (Liverpool)
Jamie Carragher is passionate about two things; Liverpool and defending, and when teammate Alvaro Arbeloa threatened both of those notions in a single moment, the scouse centre back simply lost it.
During a 2-0 win over West Brom in the 2008/09 season, Carragher was so bemused with the Spaniard's lack of concentration that he started a pushing match and as he explained later:
"It was just frustration, nothing more, it was over with quickly."
8. Mario Balotelli vs Aleksandar Kolarov (Manchester City)
It is hardly surprising to see Mario Balotelli in a list of this type.
The Italian striker, who can act like a petulent child at times, was at his most immature in March 2012 when he argued with teammate Aleksandar Kolarov over who would take a free kick.
With the Serbian intent on taking charge of the situation, Balotelli had to be dragged away by captain Vincent Kompany. Despite scoring two goals in the game, Mario left the pitch without shaking anyone's hands.
7. Emmanuel Adebayor vs Nicklas Bendtner (Arsenal)
Emmanuel Adebayor is another player who is suspect to turning on his own teammates and following his spell with Arsenal, he once entered into a training ground fight with fellow Manchester City star Kolo Toure.
Back during his time at the Gunners, it was safe to say that the Togolese striker was not the biggest fan of Nicklas Bendtner and the pair's feud finally came to a head during a Carling Cup semi-final defeat to bitter rivals Spurs.
6. Ravel Morrison vs Wilfried Zaha (England U-21s)
Despite being 5-0 up against Lithuania during an Under-21 European Championship qualifier, England teammates Wilfried Zaha and Ravel Morrison clashed on the pitch, as the former claimed the West Ham player (at the time) was refusing to pass to him.
Although the pair made up in front of manager Gareth Southgate at full-time, the troublesome Morrison was thought to be continuing his feud with anyone involved with former club Manchester United, who Zaha played for before returning to Crystal Palace.
5. Steve McManaman vs Bruce Grobbelaar (Liverpool)
Legendary Liverpool stopper Bruce Grobbelaar was reknowned for his short fuse on the pitch and it all got too much for the eccentric Zimbabwean goalkeeper in 1993 during a Merseyside derby.
A poor clearance from young Reds midfielder Steve McManaman led to an Everton goal, enfuriating Grobbelaar. The keeper went ballistic at Macca, strking him in the face, before getting hit back himself. In the end, the winger retreated. Wise decision.
4. Graeme Le Saux vs David Batty (Blackburn Rovers)
Defending Premier League champions Blackburn Rovers endured a terrible Champions League campaign in 1995 and went into their final group game away at Spartak Moscow with no chance of qualifying.
With tempers flaring, Rovers teammates David Batty and Graeme Le Saux threw punches at each other after they collided going for the same ball. Skipper Tim Sherwood got in between both of them to prevent the fight escalating and neither received a booking.
3. Ricardo Fuller vs Andy Griffin (Stoke City)
Unhappy after his captain failed to prevent a West Ham United goal, Stoke City striker Ricardo Fuller let Andy Griffin know exactly what he thought of the full back's weak attempts to stop the goal.
This quickly escalated to the former Jamaican international slapping Griffin in the face and he was rightly sent off as a result. After giving his skipper a few more words despite being dismissed, Griffin showed Fuller exactly where the dressing room was.
2. Jermaine Beckford vs Eoin Doyle (Preston North End)
The latest incident of teammates clashing occurred this weekend as Preston North End pair Jermaine Beckford and Eoin Doyle fought each other as their side chased a late equaliser against Sheffield Wednesday.
Beckford was unhappy with his teammate's decision to not to pass the ball and made his feelings heard by pushing him in the chest. After Doyle responded similarly, both men were shown a red card.
1. Kieron Dyer vs Lee Bowyer (Newcastle United)
Still the most famous incident of teammates fighting in the top flight, it was a bad day for Newcastle United already prior to the clash, with the Magpies 3-0 down at home to Aston Villa and down to 10 men.
Yet, it got a whole lot worse as Lee Bowyer and Kieron Dyer got at each other's throats in frustration and the pair were both given their marching orders. The former, who threw the first punch, was fined by the club, the FA AND the police.