Arsenal legend Paul Merson has concerns about Lucas Torreira.

While the central midfielder has impressed most supporters and pundits, Merson does not believe he has the quality to take the club to the next level.

And he believes that Aboulaye Doucoure is a must signing for the club in the summer.

"Everyone was raving about Lucas Torreira, but he's not that good," Merson told Sky Sports.

"I said this a few months ago and everyone kicked up a stink. He only looks good as he's what Arsenal have needed for a long time, someone to run around and put their foot in.

"They should sign Abdoulaye Doucoure at Watford – he'd walk into the team. I'd take him tomorrow morning. He's a much better player than Torreira and he scores goals. He's one of the most under-rated players in the Premier League – he could play for any of the top six.

"It seems no one pays attention to him because he plays for Watford and fans will say, 'Why are we buying him, he's at Watford?' – but he's a proper player."

Torreira has started 15 Premier League games and come off the bench 8 times. He has two goals and two assists in those games.