Leeds United's Australian soccer star Harry Kewell will miss next month's Premiership clash with Manchester United after picking up his fifth yellow card of the season.

Kewell was booked during Sunday's FA Cup fifth round win over Crystal Palace and earned an automatic one-match ban, ruling him out of the March 5 match.

But his Socceroo team-mate Mark Viduka will have finished his three-match suspension in time for the game, and both Australians will be in action for Leeds in the sixth round FA Cup match against Sheffield United - the club's best chance of salvaging a disappointing season.

Leeds manager Terry Venables said Kewell was back to his best form and was vindicating his decision to play him in the central striking position rather than down the left flank.

"He's a match-winner," Venables said.

"He played in that position (central striker) at the start of the season and everyone said he should be on the left wing instead.

"But he's got a lot going for himself there and can score goals. He can also go down the left wing and get his crosses in and he's a better all-round player.

"He had not such a good season last year and didn't start off this season that well, but now he's playing as well as ever."

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