Yorkshire, having suffered a record Roses thrashing at Headingley on Saturday, are searching for a replacement for Younus Khan in a bid to boost their challenge for the Championship.

Younus starts his last match in the competition against bottom club, Worcestershire, at Kidderminster tomorrow before joining up with Pakistan's squad for the World Twenty20.

Yorkshire will be without him for the final three Championship matches and Director of Cricket Martyn Moxon admitted the club were looking for a replacement. But he would not speculate on whether they were targeting a batsman or a bowler.

"We are considering several options but there is nothing concrete," said Moxon.

"The World Twenty20 is causing problems because it means fewer top players are available but if we do sign someone I would like it to be as early as possible - ideally over the next day or two."

Moxon confirmed that Yorkshire had checked out India spin star Anil Kumble, but he is returning home immediately after the Test series with England.

Despite crashing by an embarrassing innings and 126 runs to Lancashire - and exceeding their worst Roses defeat of an innings and 111 runs at Old Trafford in 1910 - Yorkshire are still only eight points adrift of leaders, Sussex.

But several of the teams bunched below, including Lancashire, have a game in hand.

Matthew Hoggard (back) and Deon Kruis (tight hamstring) will both have fitness tests today before Yorkshire finalise their team for Kidderminster. But Jacques Rudolph has recovered from the virus which caused him to miss the Roses encounter.

The South African's batting was badly missed and Younus Khan was unable to make any big impression as Yorkshire crumbled to 247 in their second innings with spin magician, Muttiah Muralitharan, doing most of the damage by capturing five for 66, including a lethal spell of three for five in 13 balls.

The Sri Lanka genius has now taken five or more wickets in 22 of his 26 Championship matches for Lancashire and his tally of dismissals over that period stands at 197.

It was Yorkshire's worst performance under Darren Gough's leadership and the captain refused to make any excuses.

"We had a dreadful first hour when we slumped to 22 for five and it was just impossible to recover from such a bad situation," he said.

"Sometimes these things happen and there is little you can do about it but there is still time for us to re-ignite our challenge."