Unai Emery admits he has been surprised by the criticism aimed at Petr Cech in recent weeks as the Arsenal goalkeeper put in a man of the match performance in Sunday's Premier League win over Everton.
Cech, 36, has captained Arsenal in all of their Premier League games since Emery took charge but has not been without his critics as he adapts to playing the ball out from the back.
He has kept summer signing Bernd Leno on the bench - except for Thursday's Europa League win over Vorskla Poltava - and Emery is pleased with his goalkeeping options.
"I'm a little surprised because there have been a lot of questions over Cech," Emery said after the win.
"In pre-season and also in the first (league) matches with us, he's played with good performances. Bernd Leno will also improve with us and learn about this competition here.
"Petr has big experience and big quality. He's started the season very well and we think he's giving us the performance we want. Today he showed us that he's very good and continuing to work hard with this spirit every day."