Pedro was due to start the game wearing a protective mask after sustaining a facial injury in a pre-season friendly against Arsenal in Beijing. "He stays with us for only one week and it is very important to find a good physical condition and to understand our idea of football".
"It's down for us to keep a positive atmosphere around the team", said Wenger, who dithered over his own future before signing a new two-season contract after the FA Cup success. Petr Cech was equal to his shot.
A 4-1 penalty shoot-out victory rewarded Arsenal for an encouraging display in the 1-1 draw and Wenger was quick to call for unity in the stands ahead of Friday's Premier League opener against Leicester.
However, Mesut Ozil and Aaron Ramsey are both doubts for that game after sitting out Sunday's match. We play on Sunday.
Wenger made two changes with 24 minutes remaining, Theo Walcott and Giroud replacing Iwobi and Lacazette, and Xhaka nearly equalised soon after with a superb 30-yard strike, Courtois producing a fingertip save to deny him.More news: Sharapova (forearm) withdraws from Stanford tourney
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After the extra times had been finished, the penalties had started.
Belgium worldwide Thibaut Courtois is a definite starter in goal, although Willy Caballero could be favoured for the Cup competitions during the upcoming season.
Chelsea have signed striker Alvaro Morata from Real Madrid, midfielder Tiemoue Bakayoko from Monaco and defender Antonio Rudiger from Roma during the offseason, but those arrivals have been offset by the departures of Nemanja Matic and John Terry.
Alex Oxlade-Chamberlain and Olivier Giroud were cool enough, and they routinely outsmarted Courtois, causing the enormous eruption of joy among the Gunners fans. Chelsea, on the other hand, have tasted defeat in four of their last six appearances in the final, with themselves and Arsenal losing and winning one apiece in their two meetings since 2005.
Also, they have extended the domination of Cup winners in this matches.
Moses was sent off in the FA Cup final in May for a second bookable offence and it was reported that the Nigerian global will miss the London derby at Wembley.