"They go twice the oil-change interval as well, " Clement says.

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Hearts did not look like a team chasing for a place in the Uefa Cup, and manager Jim Jefferies made a change at the interval, bringing on Colin Cameron for Steve Fulton.

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Blackpool had to change their keeper at the interval with Ghanaian Richard Kingson replacing Matt Gilks and his first job was almost picking the ball out of the net as Portuguese midfielder Boa Morte latched on to a cute through-ball by Parker but shot narrowly wide of the right-hand post.

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Bolton boss Sam Allardyce immediately replaced Ben Haim with Ricardo Gardener to cope with Valencia's pace and the change seemed to do the trick as the visitors drew level six minutes before the interval.

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Villa boss John Gregory, sensing a change might allow them to capitalise on Liverpool's wastefulness, brought on Lee Hendrie for Merson just after the interval.

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