Danny Welbeck's alleged dive against AC Milan will not lead to any punishment by UEFA.
Gunners manager Arsene Wenger indicated in a post-match interview that he did not see whether Welbeck deceived the officials, while Milan coach Gennaro Gattuso said he would not "judge" English football over the incident.
"I haven't seen it again. I will watch it again and give my honest feeling about it," said Wenger. "I will give him my honest feeling about it as well, don't worry."
UEFA's disciplinary body met on Monday to discuss last week's European matches and no case has been opened against Welbeck, a spokesperson confirmed to Omnisport.
The striker has scored seven times in his 31 appearances for Arsenal in all competitions this term, starting eight of the 20 games he has played in the Premier League.