Against City as well, I think he played well also.
Former Premier League footballer Rosenior has come out and supported Emery, insisting that it is unfair to judge him after just one match, and that the former Paris Saint-Germain boss needs a lot more support and time to adjust his style of play to a talented Arsenal side.
Arsenal still have issues at left-back heading into the game, with Ainsley Maitland-Niles ruled out for up to eight weeks after fracturing his leg against Man City when filling in in that role.
"I am very happy with his performance", Emery said of Cech.
It's been all change at Arsenal this summer - although Sunday's game against Manchester City didn't exactly look that way.
'It was Manchester City's day.
Rain fury devastates Kerala, Cochin International Aiport completely submerged
In fact, due to flooding and landslips, several trains at the Thiruvananthapuram-Nagarcoil route have been cancelled. Airlines including IndiGo, Air India and SpiceJet have announced suspension of their operations to Kochi .
Arsenal's options at left-back have been stretched in recent weeks as Sead Kolasinac has been ruled out until October with a knee injury that the Bosnian global suffered in pre-season. If Bernd starts [in the future], I believe in him also.
Emery has said his team must retain their personality and mentality to win at Chelsea.
"We want a good preparation before and a good response on the pitch to that preparation". When you want to play and be competitive, they can arrive. He can play at left-back but his position in the team is more at right-back.
We'll have to wait and see who Emery goes with at left-back but if Monreal is deemed fit you'd assume the Spaniard will get the nod as his return to fitness is a huge boost for Arsenal.
The Gunners signed five players in the summer transfer window to revamp their squad under Emery following his appointment back in May. One player who received much of the criticism was goalkeeper Petr Cech. The latter was reportedly unpopular with numerous players, who preferred to stay at home with their families before linking up with teammates on matchday instead.