Gossip: Dembele issued ultimatum, Man Utd prepare 'swoop' for Pellegrini

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Ousmane Dembele needs to ‘concentrate more’, his Barcelona teammate Luis Suarez says (AFP Photo/FRANCK FIFE)

Troubled Barcelona star Ousmane Dembele has been issued an ultimatum by his club: Shape up or ship out, and that has put Liverpool and Arsenal on high alert.

The France international forward, who joined Barcelona from Borussia Dortmund for £96million last year, has set alarm bells ringing with his attitude in recent times.

Club officials are reaching the end of their tether with the 21-year-old, after reports claim he called in sick to training last week – only for the club doctor to find nothing wrong him later that day. This is on top of reports claiming he spends his nights playing video games and partying.