Diego Costa is a difficult individual and Chelsea would do well to move the striker on in the summer.
The Spaniard, who joined from Atletico Madrid in the summer of 2014, has scored just six times in the league this season having initially taken English football by storm.
However, his recent spat with teammate Oscar is just the latest in a string of controversies to surround him, and now his talent is at genuine threat of being overshadowed by problems elsewhere.
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With that in mind, Chelsea should sell him on - and his departure could be key to the likes of Oscar, Pedro and Eden Hazard finding their best form again.
Though Oscar has taken to Twitter to quell any speculation of a brawl, that the incident merely involves Costa proves what a troublesome character he has become.
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The bite and aggression that makes him unplayable one day and non-existent the next is being channelled in all the wrong ways, with the Spain international now more likely to start a fight than hit the back of the net.
In Guus Hiddink, the Blues have an experienced head – and one that helped Didier Drogba shine during his first stint at Stamford Bridge in 2009 – but even he may struggle to contain his star man.
Costa clashed with Jose Mourinho during the Portuguese’s second spell in charge and infuriated Arsenal fans by brawling with defender Gabriel, who was sent off as a result.
Though the chances of Chelsea washing their hands of Costa this winter are remote, the forward could be on the move in the summer with former club Atletico reportedly desperate to bring him back to the Spanish capital.
However, much may hinge on whether Diego Simeone moves to London as Mourinho’s permanent replacement, with the Argentinean rumoured with a move to the Premier League sooner rather than later.
In the meantime, the Blues have been linked with Leicester City goal machine Jamie Vardy, whilst it's understood they're in talks with Paris Saint-Germain over a summer deal for Ezequiel Lavezzi.
Costa’s latest difficulties mean Hiddink could face a huge challenge to get their main striker back to his best form.
It's unlikely he'll be the only striker to leave the club this summer, with Radamel Falcao and Loic Remy fighting for their future at the club.
The departure of their charismatic striker would no doubt upset Blues supporters but could result in greater harmony amongst the squad and, in turn, greater performances from those who have played so poorly this season.