Arsenal boss Mikel Arteta did not even look at David Luiz after he was sent off and trudged off the pitch, according to Football London.
Luiz had a nightmare display for Arsenal on Wednesday, as they lost 3-0 to Manchester City.
The Brazilian centre-back came off the bench midway through the first-half, and was at fault for two goals which Arsenal conceded.
His failure to control the ball firstly allowed Raheem Sterling to blast him, before he hauled back Riyad Mahrez in the penalty area and was sent off.
Arteta actually defended Luiz in public, but he apparently was furious on the touchline.
Football London claims that Arteta did not make any eye contact with Luiz as he walked past him and down the tunnel.
Luiz’s future at Arsenal is now very uncertain, with his contract set to expire at the end of the season.
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