Arsene Wenger has urged for more control from Granit Xhaka after the midfielder picked up his ninth red card in three years against Burnley.
The Swiss international saw red during the Gunners' 2-1 victory and might have cost his team two points, but for a late winner from Alexis Sanchez at the Emirates.
"Xhaka's red card, honestly I have to look at it again, but the noises I heard suggest it was a red card," said Wenger.
"He has to control his game, and not punish the team with his lack of control and his tackling.
"We don't encourage our midfielders to go down in tackles, we want them to stand up and not make these kind of fouls.
So if it is a bad tackle then it is a red card."
Arsenal currently occupy second spot in the standings with 47 points from 22 games.
Aaron Ramsey has suggested that his side got what they deserved following a late 2-1 victory over Burnley in the Premier League.
Following an opener from defender Shkodran Mustafi, Burnley thought they had earned a point when Andre Gray notched a late penalty, only for the Gunners to snatch a memorable win as Alexis Sanchez finished off a penalty of his own eight minutes into additional time.
"It was a lot of minutes added on but we dug in. It's not easy when you go down to 10 men. We kept fighting and we got what I thought we deserved in the end," Ramsey told Sky Sports News.
"We're confident in the way we play. We know that we can create goals, even with 10 men."
Arsenal return to action when they face Southampton in the FA Cup next weekend.
Shkodran Mustafi has praised his side's determination after they battled to claim a last-gasp 2-1 victory over Burnley in the Premier League.
The Germany international had originally given the Gunners the lead at the Emirates before Andre Gray looked to have equalised from the spot late on, only for Arsenal to win a penalty of their own in the eighth minute of injury time, allowing Alexis Sanchez to slot home all three points.
"We played in their half for most of the game and then suddenly you are one man down," Mustafi told Sky Sports News after the game.
"It becomes difficult but we did well.
"Even after the equaliser and in the last games we've played we never give up and we always come back. I think that's credit to the team."
The Gunners currently hold second spot in the league standings, eight points adrift of leaders Chelsea.
