New Arsenal midfielder pictured in training with the rest of the Gunners squad ahead of north London derby.
With the signing of Mathieu Flamini, Arsenal have some steel in their squad for the first time since the days of, well, Mathieu Flamini.
The France international left Emirates Stadium to join AC Milan on a free transfer in 2008, and now that his contract has expired with the Rossoneri, he has made the reverse switch.
Arsenal have now posted a picture to social network Instagram of the squad in training, and Flamini looks very involved in first team affairs.
He could make his second debut for the club in the north London derby against arch rivals Tottenham Hotspur this weekend.