Just two overs from Mahmood as Joe Root brings on Chris Woakes.

The Brummie almost strikes in his first over. Brathwaite reaches at a full and wide delivery and nearly finds the man at backward point.

It's been a real testing time for West Indies so far.

Almost every other delivery is followed by Leach throwing his head into his hands.

An inside edge off the bottom of Bonner's bat sends the ball squirting into the leg side. Leach then finds sharp bounce as Bonner, on the back foot, plays inside the line.

Four dot balls from Saqib Mahmood followed by a Bonner pull down to deep mid-wicket for a single.

West Indies are still searching for their first boundary of the day.

Jonathan Agnew
BBC cricket correspondent in Barbados

Leach is finding spin and bounce, and there's uneven bounce from the far end for the fast bowlers. Not easy stuff for the West Indies batsmen.

Leach piles on the pressure as dark clouds hover over the Kensington Oval.

Brathwaite prods forward. The ball falling just out of reach of Dan Lawrence at silly point.

Turn. Bounce. The England fielders in your face and nattering away. This will not be easy for Brathwaite and Bonner.

Watching a replay of the Brooks dismissal. A piece of the turf flew off as the ball pitched, sparking the sharp turn. But make no mistake - it was short, wide and should have been dealt with.

Saqib Mahmood turns his arm for the first time this morning, replacing fellow debutant Matt Fisher.

Smart bowling from the Lancashire quick - good line outside the off stump. He has all the attributes to cement his place as an international bowler. Just needs experience and game time.

Tim Peach
BBC Sport in Barbados

Leach got a huge ovation from the Hewitt and Innis Stand as he went to field at fine leg after that over.

Nkrumah Bonner the new man in for Windies as Leach completes the over.

High-fives and pats on the back from his team-mates.

Bonner scored a century in the first Test - his second Test ton since making his debut last year.

It came a decade after his T20 international debut, during which he almost quit the sport - you can read more on that here.

Jonathan Agnew
BBC cricket correspondent in Barbados

It wasn't a great ball from Leach - it was a poor shot from Brooks, but it will boost Leach's confidence no end.

John Petrie: I think we will need to be patient today - players and viewers.

Now then! Fisher has the ball jumping off the turf and angling into Brooks. The batter plays it one handed and it falls agonisingly short of Zak Crawley at second slip.

A top effort from the fielder, though. He flung himself forward and tried to scoop the ball up.

Fisher has been impeccable this morning.

Image source, Getty Images

Jonathan Agnew
BBC cricket correspondent in Barbados

Leach has got men around the bat, there's lots of pressure on the two batsmen here.

Leach drifts down the leg side and Brooks clips for two easy runs.

The spinner returns with a fantastic turning ball which finds the outside edge and squirts past gully. Genuine edge.

Fisher is finding some movement off the pitch, aided by the reasonably strong wind in Bridgetown.

Another maiden.

Leach goes too short and Brooks punches through cover for two. Ben Stokes with a chase and a dive to stop the boundary.

There was a real lack of intensity from the West Indies pair - they could have easily taken three.

More solid bowling from Fisher, who took a wicket with just his second ball in international cricket yesterday.

The seamer bowling a tad fuller than his first over but with a tidy line. One from it.

Jonathan Agnew
BBC cricket correspondent in Barbados

That was a very promising start from Leach. It's not easy being the solitary frontline spinner with all the expectation that you'll simply bowl the opposition out in conditions like this. What he really needs is an early wicket to settle him down.

We saw a bit of turn yesterday and it's more of the same today as Jack Leach begins with a one which beats Brooks' outside edge.

The West Indies batter nudges into the leg side for his side's first run of the day.

Leach then sends through another beauty which whistles past Brathwaite's bat, followed by one which is worked into the leg side and just out of reach of short leg.

Terrific first over from the England spinner.

The England fielders are chirpy this morning. They shout encouragement to Fisher as he has one jumping up and taking Brathwaite by surprise.

On the money from the England debutant first up. Maiden.