Laurent Koscielny and Bacary Sagna to both leave Arsenal

ARSENAL have been warned they face a major fight to keep £15 million-rated defender Laurent Koscielny, as well as experienced right-back Bacary Sagna.

 Laurent Koscielny (left) and Bacary Sagna (right) could both depart Arsenal this summer

Bayern Munich and Barcelona are hot on the trail of Frenchman Koscielny this summer.

The 27-year-old has already opened the exit door by claiming he could walk away if the Gunners fail to show ambition in the transfer market.

And his agent Stephane Courbis has now fuelled fresh talk that the player, who has four years left on his contract, is a target for the European giants.

He said: “There is interest. I know that Laurent is part of a short list of three or four players for both clubs.”

Arsenal's defence would require major reinforcement if Koscielny and Sagna both left

There is interest. I know that Laurent is part of a short list of three or four players for both clubs

Stephane Courbis, Laurent Koscielny's agent

Arsene Wenger would be loath to lose the centre-back, who has just enjoyed his best season since joining Arsenal in a £8.5m switch from Lorient three years ago.

But Koscielny’s words echo those of Robin van Persie, who left the Emirates for Manchester United last summer.

The Dutchman identified the club’s lack of drive to win major trophies as a key reason behind his decision to quit.

Bacary Sagna’s future also remains in doubt after he refused to rule out a return to France for a “new challenge”.

Big spenders PSG and Monaco are keen on bringing the French international right-back across the Channel.