John Hartson/Eyal Berkovic Ain't that a kick in the head (Picture: Getty) When video showing John Hartson kicking Eyal Berkovic in the head surfaced in 1998 the footballing world was shocked. The Israeli took offence to a strong tackle from Hartson during a West Ham training session and responded with a punch to the big Welshman's leg. Hartson's response was instant: a powerful kick to the neck knocking Berkovic back to the floor.

Freddie Ljungberg/Olof Mellberg Pitch slapping (Picture: Reuters) Sweden's World Cup preparations were theatrically interrupted when a fight between Ljungberg and Mellberg broke out during training. Ljungberg won a tackle and set off down the right wing when Mellberg charged in. Ljungberg leapt to his feet, grabbed his team-mate by the throat and the pair wrestled each other to the ground. Mellberg hurled an expletive at his team-mate before midfielder Daniel Andersson tried to separate them.

Joey Barton/Ousmane Dabo Not seeing eye to eye (Picture: AFP) Manchester City’s Ousmane Dabo pressed charges against his team mate Joey Barton in May 2007 after a "savage, unprovoked and cowardly assault" at the club's Carrington training ground. Dabo sustained a detached retina, Barton was banned (six matches suspended) and fined £25,000.

Andy Carroll/Steven Taylor Jaw-breaking brawl (Picture: PA) Andy Carroll (right) attracted headlines for all the wrong reasons after an alleged row at Newcastle's training ground with Steven Taylor over a former girlfriend. The fracas left the defender with a broken jaw and Carroll with a couple of broken fingers.

Patrice Evra/Robert Duverne Player vs trainer (Picture: Reuters) France captain Patrice Evra (right) and fitness trainer Robert Duverne were witnessed having a furious exchange during a World Cup training session in 2010. France manager Raymond Domenech (pictured left) had to pull the pair apart before Duverne stormed off, throwing his accreditation badge to the ground.

Kolo Toure/Emmanuel Adebayor Handbags at dawn (Picture: Zenpix) In behaviour more akin to a taxi rank at 3am, Manchester City duo Kolo Toure and Emmanuel Adebayor rolled around the club’s training pitch exchanging headlocks in front of their team-mates, manager - and a bank of powerful zoom lenses.

Mario Balotelli/Micah Richards Battle of the bad pass (Picture: Tony Spencer) Balotelli and Richards had to be kept apart by fellow Manchester City players after clashing during a training game ahead of a Premier League match against Arsenal. The bust-up appeared to be prompted by a misplaced pass. That in turn led to an exchange of insults and it took the intervention of several other players and then manager Roberto Mancini to defuse the situation.

Balotelli/Mancini Power struggles (Picture: Eamonn & James Clarke) Balotelli again - this time in a skirmish with manager Roberto Mancini. The striker sparked an angry training ground confrontation in 2013 and as the two Italians argued Mancini grabbed Balotelli by the scruff of the neck. Brian Kidd, one of Mancini's assistants, stepped in to halt the skirmish.