Matthew Hoggard warmed up nicely for the Test series against the West Indies next week by capturing an early wicket as Worcestershire chased Yorkshire's first innings score of 521 for seven declared at Headingley Carnegie.

Working up a fair pace at the Kirkstall Lane end, Baildon-based Hoggard looked a good deal faster than any of the Worcestershire bowlers had done.

Opener Stephen Moore was still not off the mark when he edged a rising delivery to South African Jaques Rudolph, who made no mistake at first slip.

Jason Gillespie rattled Vikram Solanki's off stump to make it 39 for two but Australian Phil Jaques, the former Yorkshire batsman, had reached 38 by the close when Worcestershire were 57 for two and still requiring a further 315 to avoid the follow-on.

Although Yorkshire carved out a formidable score, it took them 153 overs and they may still regret batting for so long if bad weather cuts deeply into the remainder of the match.

They were always in control with the bat, however, and they were particularly well served by left-handers Joe Sayers and Rudolph, who each registered their second Championship centuries of the season.

But Worcestershire did not help themselves by fluffing five catches during the innings, with Sayers on the first day being dropped on four and Rudolph today when 81.

None of the chances, however, went to captain Solanki, who deputised behind the stumps for Steven Davies who did not take the field following the death of his grandmother.

Worcestershire's Bradford-born director of cricket Steve Rhodes, who enjoyed an illustrious wicketkeeping career with the county after moving on from Yorkshire, considered putting on the gloves himself but decided against it when Solanki said he would do the job.

Sayers and Anthony McG-rath added 50 when Yorkshire began the second day on 202 for one before McGrath was lbw to Dewald Nel but Sayers moved serenely to his century off 242 balls with ten fours.

It took him five hours and 28 minutes but was still the fastest of his four Championship tons.

Younus Khan was bowled by Nadeem Malik for 12 and Sayers' long innings finally ended when he pulled Nel to Stephen Moore at mid-wicket for 123.

He had defied Worcester-shire's attack for six hours and 25 minutes and it was his first dismissal at Headingley this season.

He had held the fort in three innings for a total of 16 hours and two minutes during which he faced 242.1 overs and made 282 runs.

Rudolph was well settled by the time he lost Sayers and he then added 104 with Gerard Brophy, who survived a caught and bowled chance to Roger Sillence on eight and was put down by Gareth Batty at point on 25.

Brophy and Adil Rashid both departed to Nel and Tim Bresnan struck 33 before hitting Sillence to Moore at mid-wicket.

Skipper Darren Gough smacked Sillence for a couple of fours and a six and had dashed to 22 when he declared, leaving Rudolph on 129 off 191 balls with 13 boundaries.