MUTV commentator Ben Thornley delivered a savage assessment of Kai Havertz's performance during Arsenal's 2-0 defeat to Manchester United.
Havertz started alongside fellow new signing Declan Rice in a midfield three with captain Martin Odegaard.
But Arsenal struggled for balance in the midfield as they fell to a 2-0 first-half deficit which they could not come back from.
Arteta changed much of his team at half-time but Havertz remained on the pitch for the second half.
And former United winger Thornley laid into Havertz just minutes after the interval.
Co-commentator Stewart Gardner asked Thornley what changes he would make if he was in the Arsenal dugout to which he replied: "Well, I'd have just taken Kai Havertz off cause he's rubbish!"
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Gardner then replied: "What have you got against Kai Havertz?"
Thornley responded: "I've got nothing against him!"
Thornley himself is an ex-United player having come through alongside the likes of David Beckham, Gary Neville and Paul Scholes in "The Class of 92."
He made 14 appearances for United and was rated highly alongside the likes of Beckham and Scholes.
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However injuries prevented him from ever making regular first team appearances for The Red Devils.
He called time on his playing career in 2010 after playing for Northern Premier side Witton Albion.
Havertz faces pressure to justify his £65million price tag after making the move from West to North London.
The German international will forever be well regarded at The Blues for his winning goal in the 2021 Champions League final but he struggled for consistency.
Arteta will be hoping to help Havertz find a new lease of life by deploying him in the midfield rather than using him as a false nine as he was at Chelsea.
The German midfielder has already found himself being mocked by fans after failing to impress during a skills show ahead of Arsenal's clash with the MLS All Stars.
He did, however, manage to find the net against the MLS team as part of a 5-0 victory for the Gunners.