Jeremy Guscott
Former England international on 5 live Sports Extra

Image source, Getty Images

"It is a fascinating, hardcore, intense game of chess. No-one is budging. No-one wants to concede that first try. Particularly the Chiefs because if Wasps score the first try the roof will come off this place."

Exeter go on the attack again but Wasps steal possession and they quickly go on the counter.

The hosts are penalised for not releasing at the breakdown and Exeter kick forward for another line-out on the 22m line. 

Thomas Waldrom steams forward on a 10m run from an Exeter line-out and the Chiefs try to drive a maul over under the posts, but Wasps hold up the ball and get the turn-over. 

Scrum time again and Wasps escape the danger with a lovely kick from Dan Robson. 

Jeremy Guscott
Former England international on 5 live Sports Extra

Image source, Rex Features

"The intensity is so high, it's hard to break through either defence for a try - unless someone slackens off. But at this level - a European quarter-final between two good teams - that is going to take longer than usual."

Image source, Getty Images

Bradley Davies comes on for Wasps lock Kearnan Myall, who limps off quite gingerly.

Exeter win their line-out but they are forced back towards the half-way line, although they keep possession. 

Thomas 'the tank' Waldrom is stopped mid-way between the 22m and 10m line, and Jack Nowell juggles with the ball in his own half as Exeter try to scamper forward.

A speculative kick forward from Gareth Steenson earns the Chiefs a line-out in the Wasps 22.

Jeremy Guscott
Former England international on 5 live Sports Extra

"Wasps are more than good value for this lead because they have had so much of the ball, but it is mentally tough for them because they would have thought with all that possession and territory that they would have had one or two tries by now."

It's two from two for the Wasps fly-half. 

He slots an easy penalty after Exeter are penalised for going over the top.  

Jeremy Guscott
Former England international on 5 live Sports Extra

"Great line break by Siale Piutau, but no-one could go with him. Full marks to the Exeter defence that tracked back and blocked off any pass Siale could have made. That would have led to a clear try."

A first real ball-in-hand break from Wasps' Siale Piutau but as George Smith tries to race onto it, it's knocked-on and Exeter lock Geoff Parling makes sure the danger is cleared. 

Image source, Getty Images

The Chiefs a trying to wrestle some momentum from Wasps now, as they power over the half-way line. 

Jack Nowell dances down the right wing, trying to skip past the Wasps defence, but Exeter concede a penalty for holding on. 

Jeremy Guscott
Former England international on 5 live Sports Extra

Image source, Getty Images

"I've been impressed by the Chief's first-line defence - it has been rock solid. Wasps are looking to suck the Exeter defence in then release their speedsters out wide. But the Exeter defence is like concrete - they're shoving Wasps back.

"For all their territory and possession Wasps have only got three points to show for it."

A Wasps line-out and a driving maul ensues. They're making ground here and are now 10 metres out. 

But as Wasps feed left to right, Exeter's defence stands strong, and James Haskell is eventually penalised for not releasing and the Chiefs kick to touch.  

Beep beep - Gareth Steenson's on the charge! 

The Exeter captain races cross-field in the visitors' first real attack of the game, but it unravels as Jack Nowell is turned over in the hosts' 22 and Wasps kick to touch. 

There's a break in play as Exeter front-rower Ben Moon needs some medical attention.

Wasps number 10 Jimmy Goperth has a fiddle with the tee, he preps himself for a long-range kick and over it goes!

Wasps break the deadlock.

Jeremy Guscott
Former England international on 5 live Sports Extra

"The pressure is coming from Wasps in that scrum, Exeter wanted out as quickly as possible. It is not a great sign - they're feeling the pressure already."

First scrum to Wasps in the centre-left of the field, but the hosts fail to make anything of it.

The ball is pinging around, and eventually it comes to James Haskell..but he has a case of butter fingers and it's an Exeter scrum. 

However, it's Wasps who win the penalty. The away pack can't cope with the Wasps power and the white side of the scrum collapses.

Jeremy Guscott
Former England international at the Ricoh Arena

Image source, Rex Features

"This was always going to be a humdinger and within two or three minutes we can see how it's going to be. Wonderful play by Wasps but equally great defence by Exeter. A brilliant few minutes."

Wasps retain possession from the kick-off and go through the motions in the middle of the park.

James Haskell pelts forward and Charles Piutau attempts to go on the charge but they lose the ball to the opposition.