The Brazilian was admittedly given too much space to slot the ball in off the post.
The impact on Pedro, 29, was so severe he was fully airborne and his head thumped against the turf.
"I have a big [loyalty] to this club and to the boss too". That doesn't necessarily sound like a good thing, but as I have pointed out in previous articles, it doesn't clearly mean a bad thing either. Everything has to be underhanded.
After a disappointing campaign last season, we take a look at the potential strengths and weaknesses of the Gunners as they prepare for the new season. A brace from Batshuayi and a goal from Willian sees Chelsea leave Beijing with a 3-0 win. Arsenal have got business done fairly early this season.
Iwobi and his Arsenal teammates will hope to bounce back better as they face Benfica in the Emirates Cup next Saturday.
Giroud, who has attracted interest from West Ham and Everton, will soon decide whether to stay with Arsenal despite Lacazette's arrival pushing him further down the pecking order. He's receiving treatment and will have to come off here.
"We had some very good moments in the game as well, but we couldn't score".
With Diego Costa seemingly on his way out at Stamford Bridge, it was just the performance he needed to show Conte that he can challenge new signing Alvaro Morata for a first team berth this season.
The Arsenal players took some time out of their pre-season schedule for leisure activities
Though only 20-years-old, Boga was not phased by the Premier League regulars he was facing up against. The prospect of Lacazette's movement in the final third is an intriguing one - particularly if it can free up space for Sanchez to exploit.
Express Sport has claimed on Friday that the Blues have joined the race to sign the Englishman.
Arsenal's own star signing, former Lyon striker Alexandre Lacazette, had a low-key first half and did not return for the second period.
But that's part of the problem. He then progressed to starting 14 times on the right wing.
Nacho Monreal didn't really shine until the switch to 3-4-3 near the end.
Remaining is a cluster of players whose presence isn't guaranteed on 1 September.
Chelsea v Arsenal - Premier LeagueWhat's the story?
Playing other games during the pre-season tour is a trend.