Ryan Sidebottom fittingly took the wicket that won the series (Getty)

Nottinghamshire bowler Ryan Sidebottom admits he finds it difficult to explain his transformation from steady county performer to England Test match-winner.

"I can't put a finger on it," he told BBC Sport. "I've not really changed what I have done since I have been in county cricket.

"But obviously the move to Notts has probably been a key."

Sidebottom was the undoubted star of England's series win in New Zealand, claiming 24 wickets in three Tests.

Interview: Man-of-the-series Ryan Sidebottom