Chris Jordan is finally hooked, and James Anderson gets a bowl. Jordan's rest is rudely interrupted though when Blackwood immediately skies one on the off-side and Jordan has to get his piston-like thighs pumping to try and chase it down, but it lands tantalisingly safe.

Graeme Swann
Ex-England spinner on BBC Test Match Special

"Moeen Ali could replace James Tredwell in this team. But what if Tredwell gets eight or nine wickets in this game and wins it for England, you could have an England spinner who can't get in his own County Championship team keeping out the established spinner."

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It's been a performance of quiet determination from Tredwell, whose selection ahead of Adil Rashid was widely lamented but who now has three wickets to his name. He keeps West Indies quiet, just a single from his latest over.

Graeme Swann
Ex-England spinner on BBC Test Match Special

"England seem to be unusually reticent to pick Adil Rashid. Whether or not he's been deemed unselectable after they way he bowled in the warm-up games, I'm not sure, but they can't just keep him here and have him bowling in the nets. If he's not playing, send him back home and let him play for Yorkshire. One of the reasons we don't develop high-class spin in this country is that we don't trust them. Rashid has won the hearts and minds of Andrew Gale and Jason Gillespie at Yorkshire, and as there are no more warm-up games here, let him go home and get some wickets in case they need him later this summer."

Ed Smith
Ex-England batsman on BBC Test Match Special

"News from the ECB: Moeen Ali is being added to the England squad for Grenada. He's not replacing anyone at this stage, the team will be reassessed after this Test."

Jerome Taylor is wearing the scowl of a thwarted man as he sits padded up on the West Indies balcony - he has a Test hundred to his name but is batting at ten today. Jordan's radar is beginning to misfire here - he sprays an errant full-toss down the leg side. Time for a bowling change perhaps?

Graeme Swann
Ex-England spinner on BBC Test Match Special

"A good hundred from Blackwood, a good mixture of steadfast defence and maverick aggression."

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Kemar Roach is the new batsman, which is perhaps a surprise. Jerome Taylor is the more usual number nine. Roach is off the mark with three down to third man.

David: Bell in charge for a few overs here, let's see some wickets, for the Ashes captain.

Your wishes are answered David!

Sir Viv Richards
Ex-West Indies captain on BBC Test Match Special

"It was the same sort of shot that got Chanderpaul out - they advanced but didn't quite get to the pitch of the ball, and holed out to cover. You must give credit to Tredwell as he's not the biggest spinner of the ball, but he has guile and variety."

Those young ladies aren't leaping with joy any more, Aggers. West Indies lose another wicket when Jason Holder hits Tredwell uppishly to Gary Ballance, who takes a good catch low down at cover.

Scorecard

Image source, AP

Jonathan Agnew
BBC Test Match Special

"There are young ladies literally leaping with joy there - sheer enthusiasm and love for the game. All part of the atmosphere, and well played Jermaine Blackwood. When he came in, you'd think if he were to get a century, it would come off 90 balls - it's taken 205."

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He's done it! Blackwood nurdles Tredwell down the ground to bring up his first Test century in his sixth Test match. An excellent, gutsy knock from the young Jamaican.

Image source, Getty Images

Jonathan Agnew
BBC Test Match Special

"The crowd don't like this with Jordan bowling down the leg side, they think it's a tactic - I don't think it is, I think it's just some bad deliveries."

Jermaine Blackwood, leaning jauntily on the handle of his bat at the non-striker's end, looks as composed as anyone has a right to look when they're within one of their first Test ton. Holder extends the agony by playing out six dots.

West Indies 275-6 (102 overs) - trail by 124 runs

Batsmen: Blackwood 99*, Holder 16*

Fall of wickets: 19-1 (Smith 11), 42-2 (Bravo 10), 89-3 (Samuels 33), 99-4 (Brathwaite 39), 192-5 (Chanderpaul 46), 227-6 (Ramdin 9)

Bowling figures: Anderson 19-9-52-1, Broad 22-2-67-2, Jordan 21-6-46-1, Stokes 19-3-64-0, Tredwell 21-9-42-2

England 399: Bell 143, Root 83, Stokes 79; Roach 4-94

West Indies won toss

Full scorecard

Image source, AP

Jonathan Agnew
BBC Test Match Special

"I think he was going for six for his hundred there, coming down the pitch. We saw Gary Ballance at Lord's hit a six for his first Test century."

Listen to TMS commentary via the audio icon (available in UK only).

Adam Lyth is hauled off his deck-chair to do some substitute fielding as skipper Alastair Cook trots off. It's up to Ian Bell to take the reins temporarily.

Blackwood, within six of his maiden century, decides he can no longer resist Tredwell's loopy, lofted tempters - he steps down the track and smashes the off-spinner straight back over his glistening bonce. The ball hangs in the air for a while but doesn't quite carry the rope: just four for Blackwood, whose wait goes on. He moves on to 99 with a nudge past point.

Herbie, Leeds: Re Ruairi, Putney (18:16): get a wicket without bowling a no ball?

Chris Jordan continues for the 101st over of the West Indies innings. Blackwood inches closer to the promised land with a single off his legs.