Swann: We need to be positive

England will rely heavily on star batsman Kevin Pietersen to manufacture a winning position on the final day of the Test series against West Indies.

Pietersen resumes on 34 not out today with England 82 runs ahead of their hosts and with seven second-innings wickets intact. With time running out in the contest and Andrew Strauss' team needing to bowl out the West Indians to level things at 1-1, Pietersen's ability to score quickly will be crucial.

"We have to go in believing we can do it," said off-spinner Graeme Swann. "We need to be as positive as possible, hopefully get a score on the board and create some doubts in the minds of the West Indian batsmen."

He added: "We got blitzed out in Jamaica on a wicket which was probably better than the one we are now playing on.

"We will be hoping for a magic effort from somebody.

"We've toiled hard in this series and have not got a lot to show for it, so we probably feel due one or two magic sessions."