Chelsea boss Rafa Benitez has said he will shake hands with Leeds counterpart Neil Warnock before Wednesday's Capital One Cup quarter-final at Elland Road.
The pair have had several high-profile spats in the past, most notably in May 2007 when Warnock - then in charge of Sheffield United - accused Benitez of fielding a weakened Liverpool side against Fulham.
The Cottagers, who were battling to avoid relegation, won the game and ultimately beat the drop whilst Warnock's side dropped into the Championship at the end of the season.
The Yorkshireman said at the time that he would "never forgive" Benitez, whose legal team subsequently sent him an email warning of possible legal action were he to be mentioned again.
However, the Spaniard insists he has drawn a line under the issue, saying: "I'm professional so will do my job. I'm professional, I don't have any problem, I will behave."
Warnock also seems keen to move on - although he stopped short of agreeing to a pre-match handshake.
"Enough water's passed under the bridge," Warnock said. "It's one of those things that disappoints you in life and you have to get on with it really.
"You get disappointments in every walk of life and I've made my feelings clear over the last few years - and nothing will change that.
"I think it (the email) had his name on, I think it was his solicitor who was threatening legal action and I've got it in a scrapbook at home."
Leeds v Chelsea is live on Sky Sports 1HD at 7pm on Wednesday.
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