Arsenal defender Per Mertesacker says new signing Granit Xhaka will be a success at the Emirates this season.
The former Borussia Monchengladbach midfielder was Arsene Wenger's first summer signing after leaving the German side for a reported £35million.
He will fill the void left by Mikel Arteta, Mathieu Flamini and Tomas Rosicky who were released by the club at the end of last month.
"I don't know him personally but that doesn't matter," Mertesacker told Arsenal Player.
"We will get along with each other very quickly because he is a good player and has done so much for Borussia Monchengladbach.
"He can speak German as well, so it will be joy to get his first year going and help him bed in as a player.
"He's a leader and that is really important, especially in midfield. He has got a very good attitude, is very composed on the ball and contributes a lot.
"He is a good passer as well, so he will set the tempo. I am looking forward to how he does it, how composed he will be in training and in the games. He will be the perfect signing for us."