Chelsea interim manager Rafael Benitez will shake Neil Warnock's hand before Wednesday's Capital One Cup quarter-final against Leeds.

Warnock, the Leeds boss, is unsure whether he will complete the pre-match gesture at Elland Road due to a dispute between the two dating back to 2007 when they were respective Sheffield United and Liverpool managers.

Benitez was accused by his rival of playing a weakened team that Warnock felt contributed to United's relegation from the Barclays Premier League. "I'm professional so will do my job. I'm professional, I will behave," the Spaniard said.

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