The Independent report that Arsenal could be fined £300 for failing to have a designated captain on the pitch in the second half of Sunday's 2-2 draw against Manchester City.
Skipper Laurent Koscielny came off at half-time with an injury and none of his team-mates assumed the armband.
A first breach of the rules on player identification could cost the Gunners £300, although the Independent adds that "the Premier League are expected forego a fine on this occasion and merely remind Arsenal of their duties."