Arsenal could apparently be forced for replay their fourth-round Carabao Cup tie against Norwich City after making two substitutes in extra time.

The Gunners apparently might have to replay their clash against the Canaries after potentially making too many substitutes during their run-in on Tuesday.

The League Cup now allows four substitutes if a tie goes to extra time, which happened during Arsenal’s clash against Norwich.

Although the Canaries were 1-0 ahead, Edward Nketiah came on in the 85th minute to bring the scoreline level, forcing the two teams to play another 30 minutes in which Eddie found the back of the net for a second time.

Arsene Wenger had used two subs already during the 90 minutes of regular time, bringing on Chuba Akpom and Eddie. He later introduced Joe Willock and Josh Dasilva in extra time.

LONDON, ENGLAND – OCTOBER 24: Edward Nketiah of Arsenal celebrates with team mates after scoring his sides second goal during the Carabao Cup Fourth Round match between Arsenal and Norwich City at Emirates Stadium on October 24, 2017 in London, England. (Photo by Richard Heathcote/Getty Images)

While this does bring Arsenal’s total to the allocated four, there’s been some confusion over whether the Gunners had to have used all three in regular time and just one in extra time for the new rule to count.

Carabao Cup Rule 10 reads: “Each team is permitted up to seven substitutes of whom not more than three may take part in the match.

“Where any match goes to extra-time each club will be permitted to use an additional sub (in extra-time only).”

Manchester City face the same problem after Pep Guardiola brought on Leroy Sane and Kyle Walker on in extra time against Wolves.

Both referees Andy Madley and Kevin Friend obviously allowed the two subs to come on, which suggests that it’s fine. However, if there’s that much confusion, surely it would be a bit extreme to force both ties to a replay?