Former Manchester United star Gabriel Heinze once was regarded as a legend in the making at the club. Joining the Red Devils from PSG in 2004, a Premier League title followed as the Old Trafford faithful adored his full-blooded commitment on the pitch – until he tried to leave United under hugely controversial circumstances.
Heinze's next move was viewed as self-sabotage of the highest order as the Argentinian star set fire to his United legacy when he attempted to force a move to Liverpool in the summer of 2007.
In doing so he subsequently broke one of English football's most sacred yet unwritten rules: players not move from United to their bitter rivals and vice-versa.
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Heinze, now 47, is now set to join Mikel Arteta’s coaching staff at Arsenal ahead of the new season as the Gunners are in the midst of a coaching reshuffle, with former assistant Carlos Cuesta having departed for Parma.
Heinze's return to the Premier League will no doubt ignite memories of one of English football's most brutal transfer sagas of when the Argentinian was seeking to traipse the M62 divide and join then-manager Rafa Benitez at Liverpool.
The controversial switch would have made him the first player since Phil Chisnall in 1964 to move directly between the two sides. Yet the union of Heinze and Liverpool will always be a case of 'What if?' Former United manager Sir Alex Ferguson spectacularly dug his heels in to ensure that the defender would never get his wish.
It began as Heinze's agent, Roberto Rodriguez, was reportedly informed by United's then-chief executive David Gill that he could leave for £6.8million. Yet United never foresaw that the full-back would clamour for a switch to their greatest rivals.
An offer matching United's valuation was then indeed lodged by the Reds. However, the Red Devils knocked back Liverpool's proposal, to Heinze's dismay, and so lawyers were consulted.
"I can assure you, Liverpool will not be getting Gabriel Heinze. We can put that to bed right now and we have done so," Ferguson told Sky Sports at the time.
The legendary United boss also claimed United were in the driving seat over the move. Benitez however was left stunned by United's refusal to play ball.
"It’s clear he’s a player we like and he’s a very good player," Liverpool's Spanish boss said. "That’s the reason why they don’t want him to leave for us."

In another twist to one of the Premier League's bloodiest transfer tussles, it later emerged that Crystal Palace were offered the chance to buy Heinze by a South American-based agency, and then sell him to Liverpool straight after.
This would allegedly pocket the Eagles £1m in compensation, as revealed by former Palace chairman Simon Jordan in his memoir, Be Careful What You Wish For.
"My stance was no way were we getting involved and I told Alexander to contact David Gill, Manchester United’s chief executive, and tell him of these attempted shenanigans, which he duly did," Jordan wrote.
Heinze and his agent eventually took the case to a Premier League arbitration panel in a bid to engineer the move. However, Jordan's evidence was later used in the hearing which saw United prevail.
After losing the right to move to Liverpool, Heinze told the Daily Mail: "My fight is for the freedom to negotiate with any club. United never wanted me to leave for one of the big clubs, but this anti-Liverpool clause is incredible."
Liverpool were reportedly expecting Heinze to appeal. Yet a late charge never materialised from the player as United accepted a bid from Real Madrid.
"I don't have many regrets from my career as a footballer, but that episode with Ferguson [has] to be one of them," Heinze later said of the ordeal. "I spent three years in Manchester and had some great moments and I regret [leaving the club] a lot."
After United, Heinze went on to play for Madrid, Marseille and Roma. The ex-Argentina international called time on his career in 2014 and has since ventured into management, however he has been out of work since November 2023.
Arteta and Heinze previously played together at PSG but they will now reunite at the Emirates Stadium. It's fully expected that Heinze's journey to work at another of United's fierce rivals will be without drama this time around.
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