That was the biggest chance for Arsenal in the half while Chelsea's Pedro also tried his hand from the left but his powerful left footed shot was blocked by Petr Cech. It seemed the Brazilian kicked his own leg which caused him to lose his balance.
"We were dominating (at the time of Pedro's dismissal) and I just wondered whether we would come back or not". The Belgian stopper got a crucial fingertip to the ball to prevent Arsenal equalising.
"It was a pity to lose the FA Cup final against Arsenal after a really great season for us", said Conte. Pedro made a decision to try his hand at defensive duties and launched himself studs up into Elneny's ankle to result in a red card.
In response, Courtois had to be alert to beat away a fierce, goal-bound cross from Elneny and then a rasping long-range drive from Granit Xhaka before the impressive Kolasinac, a close-season signing from Schalke 04, nodded home a deserved equaliser.
The sides couldn't be separated at full-time so the 2017 Community Shield was decided on penalties. Straight to penalties to decide the victor, with a new format of shooting rotation. This means that Team A take one penalty then Team B take two in succession. Team A then get two successive penalties, a little like the tie-break in tennis, and so on until there is a victor.
Cahill stepped up first for Chelsea and scored before Theo Walcott and Nacho Monreal converted for Arsenal. Thibaut Courtois and Alvaro Morata missed for Chelsea in the subsequent penalty shootout, with Olivier Giroud scoring the winning penalty for the Gunners.
Chelsea finished the game with 10 players after a red card for Pedro and along with Moses he will now miss the start English Premier League season next weekend against Burnley.
It was a dramatic end to a dramatic game.
Wenger told BBC Sport following Sunday's game: "We had some hard moments at the start of the second half but after that we dominated".