"I'm sure they haven't forgotten that match," said Harrison. "We are in for a difficult contest and Wycombe must be the favourites. They are easily the best side we've got to face."
Teddington's big strength is their Cup pedigree. Since 1989, they have reached six major finals, three in the Challenge Trophy and three in the National Knockout, winning five of them.
One player, left-arm spinner Simon Wheale, has appeared in all of them and Harrison says: "He's as keen as ever to win this one. Simon's given 15 years' service to this club and he loves Cup matches. He certainly knows how to win them."
Evening Standard Challenge
semi-final: Teddington (231-8 ) beat Stanmore (190-9) by 41 runs.
FINAL: The Oval - Sunday 15 September: High Wycombe vs Teddington, 11am.