Tomasz Radzinski regrets the way he left Everton.
Radzinski handed in a transfer request and publicly criticised David Moyes - as well as urging Wayne Rooney to quit - in 2004 before joining Premier League rivals Fulham in a £1.75m move.
"When you are 27, 28, 30, sometimes you make mistakes," he told The Toffee Blues.
"Everybody makes mistakes. That's one of the biggest mistakes I made in my career because I loved my time there. I regret saying these things.
"It's just too bad it happens. I would have done it differently right now, as simple as that. I can't take it away anymore, it's there on the table, it's been said and everybody will remember this."
Radzinski, posing with his Everton jersey, added: "If I can take my hats off and apologise to all the Toffees fans I will, so I'm sorry about that."