At tea on the fourth day England were 105 for two, a lead of 221.

Kevin Pietersen was 21 not out, having so far shared an unbroken third-wicket stand of 54 with 22-year-old Essex left-handed opener Cook, whose century in this match was his fifth in 15 Tests.

England, whose first innings lead of 116 was thanks mainly to left-arm spinner Monty Panesar's haul of six for 129, resumed after lunch on eight without loss.

Andrew Strauss, captain in the absence of the injured Michael Vaughan, had moved on to 24 when the left-hander was squared up by Corey Collymore and edged to Runako Morton at second slip.

He was replaced by county colleague Owais Shah, also batting on his Middlesex home ground, in what was his second Test and first in England.

Shah, who'd made a nervy six in the first innings, got off the mark by driving pace bowler Collymore for four.

But that was as good as it got for Shah who gloved Collymore down the legside to wicketkeeper Denesh Ramdin.

England were now 51 for two with Collymore on his way to a fine opening spell of two wickets for 15 runs in six overs.

Cook stylishly square-cut seamer Jerome Taylor for four and clipped him through mid-wicket before completing a 72-ball fifty with eight boundaries.

Earlier Panesar's return was the fourth time in his 14 Tests that the 25-year-old had taken five or more wickets in an innings.

And with England a pace bowler short as Matthew Hoggard (thigh) remained off the field and in the absence of the already-injured Andrew Flintoff, it was thanks to Panesar they stayed on top in a match that could yet be drawn.

West Indies resumed Sunday on 363 for seven, 190 runs behind, but having survived the follow-on with senior batsman Shivnarine Chanderpaul 63 not out.

Chanderpaul, who'd shared stands of 92 with Dwayne Bravo (56) and 83 with Ramdin (60) on Saturday, succumbed to Panesar's fourth ball Sunday when on 74, the left-hander was hit on the back leg by a ball that gripped and turned out of a footmark.

Chanderpaul, who in the Lord's Test three years ago scored 128 not out and 97 not out, had batted for over four hours and faced 193 balls with nine fours.

Taylor and Daren Powell hit boldly against their opposing quicks before Taylor, on 21, was caught at cover-point off the erratic Stephen Harmison, England's fastest bowler having to wait until his 27th over for a wicket in his first international match since the Ashes tour.

Powell then gave himself room outside leg-stump to belt Harmison through mid-off for four in flamboyant style and next ball followed that up with a textbook cover-driven boundary.

Panesar restored order when last man Collymore become his fifth lbw victim of an innings where the tourists struggled with his arm-ball.

Powell was 36 not out, West Indies all out for 437.

Matt Prior, the first England wicketkeeper to score a century on Test debut, followed up his 126 not out with a tidy display behind the stumps.