Roy Keane was spotted making gestures to fans in the Sky Sports studio during Manchester United's 3-0 win over Everton.
The United legend provided punditry for the game on Sunday afternoon and supporters spotted him inside Goodison Park.
Rather than focus on the pitch, they decided to film Keane as he chatted to fellow studio guest Karen Carney before kick-off.
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Unsurprisingly, he didn't take it too well. Check out the entire exchange below.
The 52-year-old repeatedly pointed towards the pitch, telling everyone to focus on that rather than him.
When they didn't listen, he pointed with more and more fury. You can only imagine what was coming out of his mouth. The former Republic of Ireland international doesn't have the best of tempers.
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He'll have been delighted seeing United make it five wins from their last six league games in tough circumstances.
Everton were handed a 10-point deduction by the Premier League during the international break and Sunday afternoon was their first game since the punishment.
Many expected United, who struggle away from home in hostile atmospheres, to wilt. Alejandro Garnacho's spectacular overhead kick inside three minutes silenced the home end and wrapped up the goal of the season race.
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The 19-year-old produced an outrageous feat of athleticism to smash Diogo Dalot's cross past a helpless Jordan Pickford in the Toffees net.
Marcus Rashford's penalty in the second half took the game away from Everton and Anthony Martial's first league goal of the season 15 minutes from time wrapped up all three points.
United manager Erik ten Hag handed 18-year-old Kobbie Mainoo his first Premier League start, with the midfielder impressing.
Keane praised Mainoo post-match, admitting he 'loved' watching the teenager impose himself on the game.
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He said: "The club obviously think highly of him. With the build-up to the game today, coming to Everton, for the manager to put him in, he and the staff around the place obviously must trust him.
"Good luck to the kid. He was outstanding. It's a great start for him.
"Let's hope he stays injury-free and gets a run of games for Man United because he looked a Man United type of player.
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"Nice and brave, lots of courage. I loved watching him."
United return to action in a must-win Champions League game against Galatasaray on Wednesday evening.
The Red Devils are currently bottom of Group A and a defeat out in Turkey will see them eliminated from the competition.
Topics: Manchester United, Roy Keane, Everton, Premier League