Delano Potgieter defends the first two balls but the third beats his bat and Ollie Pope and runs all the way to the rope at the finest of fine legs for four byes.

Handy, for the visitors. Eight more needed for that elusive second batting point of the campaign.

Here we go then, we've had the calm, now for the storm...

12 runs for a batting point, 37 to avoid the follow-on, five overs until a new ball is available, two wickets standing.

Delano Potgieter is on strike on 37* with Will Jacks bowling to him from the Pavilion End. Interesting.

Cricket is five minutes away...

Roushan Alam
Commentator on BBC Radio 5 Sports Extra

In the final session, we will see Hampshire look to try and get to 272 and avoid the follow-on and Surrey will try to mop up.

Surrey won't want to break, but they can spend 20 minutes plotting how to get these final two wickets.

Delano Potgieter has a defiant 37 from 92 balls with James Fuller yet to get off the mark and only Kyle Abbott left in the hutch.

Hampshire need 12 for a batting point and 34 to avoid the follow-on.

We'll have a whopping 40-over session after tea, and Surrey can claim a new ball in five overs time.

Don't go anywhere, this is going to be a thrilling chapter in this match.

Jordan Clark is back, with figures of 4-49 already and looking for more.

Delano Potgieter dabs off his hips to scamper a single and bring James Fuller onto strike from his second ball.

He gets off it straight away with a leg bye and Delano Potgieter allows the next couple of deliveries to slide by before glancing into the leg side for a single.

Delano Potgieter picks up a single off Matt Fisher, who wants to follow Jordan Clark and pick up his fourth wicket.

James Fuller is going to have to dig-in quickly here and he negotiates the rest of the over.

15 away from a second batting bonus point of the season, but 37 needed to avoid the follow-on and completely change the complexion of this match on the third afternoon.

Another 15 runs needed for that bonus point. Perhaps more importantly for Hampshire, 37 still required to avoid the follow-on.

Kevin Howells
Commentator on BBC Radio 5 Sports Extra

That was travelling. It's Topley who has got down to that. There must be disbelief for Jake Lehmann.

What a knock from him. It needed something special to be honest to get rid of him.

But that was special and some.

The Will Jacks spell is over, Jordan Clark is back at the Vauxhall End.

Surrey have their tails up again.

A new ball is available in eight overs too.

Follow-on target is 43 runs away. Three wickets remain.

Oof, a missed chance?

Felix Organ gets off the mark with a streaky boundary off Matt Fisher which flies past second slip and away to the rope.

Kevan James
BBC Radio Solent commentator

That is a great diving catch to the right. Wow, Lehmann goes.

He looks a little disappointed as rightly he might be because that is a seriously good catch.

Kevin Howells
Commentator on BBC Radio 5 Sports Extra

Lehmann and Potgieter are going ever so well.

When your team is in a situation as Hampshire are in the Championship at the moment, you need to show in the matches you play, session by session, fight.

You do not roll over, you're there for the battle and that is the story of this session.

A couple of singles off Will Jacks bring up the 50 stand between Jake Lehmann and Delano Potgieter from 131 balls.

This has been a vital partnership.

Hampshire's deficit is down to 197.

Kevan James
BBC Radio Solent commentator

They [Surrey] were taking wickets regularly and now they're having to work.

The spinner coming on means they're having to try even harder, trying something different.

Delano Potgieter picks up a single off Matt Fisher to reach 26* before Jake Lehmann drives to deep cover for another to move to 67* and then flashes a cut to backward point, beating the sliding fielder to go into the 70s.

Another single follows into the off-side. 29 required for a batting point, which would be just the second of Hampshire's season.