The 21-year-old striker was sent off for a harsh challenge just four minutes after he came off the bench in the draw
Arsenal coach Mikel Arteta has admitted he is unsure of the rules regarding VAR after Eddie Nketiah was sent off during the 1-1 draw against Leicester on Tuesday.
Nketiah was shown a red card while the hosts were leading 1-0 and just four minutes after he came off the bench.
Referee Chris Kavanagh consulted VAR before dismissing the forward for a rough challenge on James Justin with just 15 minutes left in the Premier League encounter and the Foxes came back to rescue a point through a late Jamie Vardy goal.