What a final session at Trent Bridge between Nottinghamshire and Worcestershire, which has made all three results possible on the final day.

Notts were cruising on 125-1 in their second innings, with Ben Duckett and Ben Slater both going well, before Nathan Smith stepped to the fore.

The New Zealander took four wickets in seven balls as part of a collapse of six wickets for 19 runs, putting Worcestershire right in this contest.

Lewis Gregory (23) and Kasey Aldridge (20) have seen it through to the close of play and have given their side a slender lead to take into day four.

Earlier on, we saw Surrey make 428 in their first innings with Jamie Overton's 35 helping move the score along. Aldridge bowled well for his 5-64.

Lewis Goldsworthy (58) and Tom Lammonby (51) struck half-centuries for Somerset in their second innings.

I'm afraid Hampshire's new look opening partnership has not worked in this game.

A little bit of work to do next week against Warwickshire.

I'd much rather be Lancashire than Hampshire in this situation. I think Lancashire are not in a bad position.

Into the final couple of overs in the day at Trent Bridge and you wouldn't put it past Worcestershire sneaking out another Notts batter before the close.

Adam Finch almost gets Lyndon James to edge behind in consecutive balls in the penultimate over of day three.

Whatever happens, we've got a fascinating final day in prospect.

Leus du Plooy's double hundred will have to wait until the morning - he goes to stumps on 196.

Max Holden is 211 not out and their third-wicket stand is worth exactly 350.

Middlesex have also snuck into a first-innings lead in that last over - they are ahead by one run!

Lewis Gregory and Kasey Aldridge are building a nice little partnership.

The Somerset lead stands at 58 as they pass 200 runs in their second innings.

How many double hundreds have we seen this season?! It's incredible.

Max Holden becomes the latest batter to go past 200 - it's a maiden double ton for the 26-year-old.

371 balls with 16 fours.

Batting partner Leus du Plooy is only six away from that landmark himself.

We've seen that a lot - a player not playing a shot and losing the off stump.

A real error of misjudgement from Calvin Harrison for the first time in the match, that's the first time he's made the wrong decision.

A lovely bit of bowling from Adam Finch. Crikey - what a game we're getting here!

Big wicket for Matt Milnes, big wicket for Yorkshire.

Gloucestershire opener Cameron Bancroft pushes forward at a full one and snicks through to the keeper.

Yorkshire will want at least another one tonight with the forecast looking very mixed for the final day.

Worcestershire understandably have their tails up and are threatening with seemingly every ball.

Josh Baker is finding some nice drift and turn with his left-arm spin.

Four overs of the day to go in the sunshine at Trent Bridge.

Adam Finch has joined the party and Worcestershire are on a roll.

Wow! Jordan Cox really has his eye in now.

He moves to 50 from just 52 balls and reaches the milestone in style with a huge six off Jaydn Denly.

Poor Jaydn - that was his first ball!

Three maidens on the spin - pardon the pun - for Nathan Lyon but Hampshire are keeping him at bay for now.

Seven overs remain today.

At the other end, Tom Bailey, usually a seamer, is bowling off spin.

Will Rhodes is sharing the new ball with Oliver Hannon-Dalby at Edgbaston.

That's because Chris Rushworth is struggling with a slight calf problem.

Image source, Rex Features

Jordan Cox seems to be going after Matt Parkinson.

After those consecutive fours earlier he's gone one better on this occasion with a four followed by a six.

There's another four later in the over and that was an expensive one from Parkinson, with 19 coming from it.

Cox is on 38 from 47 balls and has played some lovely shots.

It's been a good few days for Calvin Harrison but he's going to need something special here to get his team out of trouble.