Mikel Arteta does not understand the use of pitchside monitors.

Eddie Nketiah was shown a red card for his tackle on Leicester's James Justin.

Arsenal Head Coach Mikel Arteta. [Getty]

Arsenal boss Mikel Arteta says he does not understand the use of pitchside monitors in the Premier League after Eddie Nketiah was given his marching orders in their 1-1 draw with Leicester City.

Referee Chris Kavanagh initially showed Nketiah a yellow card for his tackle on Leicester's James Justin, but after a VAR review and viewing a replay on the sidelines himself, he changed his decision to a red card.

More: Arteta wants Arsenal to learn how to put games to bed. "In the last year I have never seen a referee check any images," said Arteta. "I do not understand the rules. But I can do nothing now."

Arteta was also unhappy at Jamie Vardy's challenge on defender Shkodran Mustafi between the 40th and 45th minute, and felt the Foxes striker should have seen a red card also.

"It can be a red card but then Leicester have to play with 10 men," Arteta told Sky Sports.

"For an incident that happened between the 40th and 45th minute, it has to be a red card as well."

Follow Think Football Ideas across our social channels, on Facebook, Twitter and Instagram.