Stephan Lichtsteiner and Lucas Torreira also made their first Arsenal starts, with Torreira impressing in midfield before being taken off in the second half after receiving two kicks to his leg.
Last night, Pierre-Emerick Aubameyang made his long-awaited European debut for Arsenal in the 4-2 win over Vorskla Poltava.
New Arsenal manager Unai Emery has been tasked with steering the north London side back into the Champions League for next season, with the Gunners aiming to break back into the top four this term.
Yet, even with Cech enduring an indifferent start to the season under Emery, the 36-year-old has managed to retain his place. I think it could change, not every week, but he will change a lot.
Mesut Ozil came off the bench to score against Vorskla and although I still think his best position is in the No.10 role, the German star is likely to start out on the wing where he's been deployed in the last two league games.
Therefore, Matteo Guendouzi is likely to come back in to midfield while Granit Xhaka will replace Mohamed Elneny after being rested for the Europa League clash. I think it is the best.
But Leno has always been used to such a style of play and proved that on Thursday, with the German confident his characteristics will suit Emery in the long run.
The Hale End Academy product, who set up the opening goal scored by the Gunners, was given the highest marks by Football. My idea is to decide in the last hours before each match and first I will tell the players my decision. I will work hard every day to play more games.
But now the [priority] for us is a good performance and we spoke with every player, and with this situation with the goalkeepers, [we spoke] to explain the situation at the moment and continue working for each match to give us the performance.