Jack Wilshere, Thomas Vermaelen and Abou Diaby are apparently the trio that the La Liga giants are keeping tabs on and they could make a mega move for them next year.
This news is sure to worry Gunners fans as when fit, these three players are some of their prized assets.
The English Premier League team have lost some of their best squad members over the last few years and will be desperate for this not to happen again.
Tito Vilanova is sure to monitor their fitness though as Vermaelen and Diaby have both struggled to stay injury free for any lengthy period of time recently, whereas Wilshere has not played for the North London club for over a year.
Both Alex Song and Cesc Fabregas have moved from the Emirates Stadium to the Nou Camp and could persuade these three to join them in Spain.
It would certainly be one of the biggest transfer stories of the window, keep an eye out to see if Barcelona can launce their attack on the Arsenal squad.