Arsenal boss Unai Emery has been warned about selling defender Laurent Koscielny if he wants to have a top 4 finish this season.
Tottenham legend Tim Sherwood said Koscielny must not leave the club and must stay fit for the Spanish boss to be able to boast of finishing well.
Meanwhile, the North London side have been able to record a good start of the season as they are now 14 games unbeaten in all competitions after losing their first two Premier League games against Manchester City and Chelsea respectively.
The former England midfielder Sherwood believes the Frenchman has all it takes to help turn the fortunes around at the Emirates at the end of the season.
According to him, Koscielny is a game changer and has been missed but with his return, the weak Arsenal defence will be stronger.
The legend player stated that the Arsenal team now has picked the biggest form going forward with Alexandre Lacazette and Pierre-Emerick Aubameyang this season.
However, Koscielny is being linked away from the club with reports that he is being wanted by Spanish giants Barcelona.
Koscielny has yet to play any game this season for the Emirates Stadium side as he has been sidelined due to injury.