Matt Derbyshire scored two and made another as Premier League Blackburn Rovers breezed into the FA Cup fifth round with a 4-0 win at second division Luton Town on Saturday.

Derbyshire, neatly put through by Benni McCarthy, fired Blackburn into a 10th minute lead and returned the favour in the 36th minute, heading the ball across the goal for his South African strike partner to rifle home.

Derbyshire headed the third soon after the re-start from a Brett Emerton cross and Norwegian midfielder Morten Gamst Pedersen struck the goal of the game with a curling shot from the edge of the area.

Fourth round action was continuing on Saturday with another 11 ties, including Premier League leaders Manchester United at home to Portsmouth. Chelsea and Arsenal both play on Sunday.