Arsenal legend Patrick Vieira has revealed he started the infamous tunnel row between the Gunners and Manchester United in 2005.
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Vieira sparked a hostile exchange between the two bitter rivals at Highbury as the players lined up in the tunnel ahead of kick-off.
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The bust-up was partially captured by television cameras, with United's Roy Keane responding angrily after Vieira exchanged words with Gary Neville.
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United went on to win the Premier League clash 4-2, with neither side punished for the fracas, and former France star Vieira admitted he caused the tunnel chaos in an ITV documentary, Keane and Vieira: The Best of Enemies, to be screened on Tuesday.
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"I started it," Vieira said. "I was cool, I was really calm, I was smiling at him - and then he lost it.
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"When we played at Old Trafford his (Gary Neville's) tackling was flying in on Robert Pires and he was doing it on purpose, and I said 'listen, we are not at Old Trafford here, this is Highbury'.
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"So I said to him 'if you touch Robert, I will come after you'."
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Keane explained how he joined the assembled players waiting to take the pitch to find Vieira mid- flow with Neville.
Manchester United's rivalry with Arsenal is all in the past now. Liverpool, Chelsea, City have evolved so no more quarells and beef