Jacob Stockdale could be in trouble after a potentially high challenge on winger Immanuel Feyi-Waboso. We are awaiting the TMO decision.

So close to an Ulster breakthrough as they go left from centre-field, but with the try line beckoning, Michael Lowry's pass to Jacob Stockdale is a shocker leading to the winger knocking on.

Thankfully for the hosts play is brought back for a penalty to Ulster in front of the posts.

They look like going for a tap.

Ulster win a penalty metres inside the Exeter half. Some pushing and shoving breaks out between the sides but it is soon put to bed and Jack Murphy kicks into the Exeter corner.

Exeter battle through a couple of mauls before throwing the ball wide on the right.

They look to be in for the opening try but the referee calls them back for a forward pass.

The English side will get another chance at points as Ulster infringe the offside line once more.

However, Harvey Skinner elects to kick into the corner this time. Will a different approach pay dividends?

Andy Gray
BBC Sport NI at the Affidea Stadium

It's a lovely day in Belfast, but the wind must be stronger at pitch level than it feels in the stands.

That's both Nathan Doak and Harvey Skinner, who usually are pretty reliable off the tee, who have missed penalties.

This is all rather tense.

But the fly-half's kick also fails. Still awaiting our first points of the day.

Now Exeter are awarded a penalty just inside the Ulster half. Harvey Skinner will try his luck with a kick.

Image source, Getty Images

Ulster think they have taken the lead after Michael Lowry raced through after some sustained Ulster pressure, but it is disallowed due to an earlier neck roll by Cormac Izuchukwu on Tom Hooper in a ruck.

Image source, Getty Images

Nathan Doak pulls his kick inches wide of the uprights. We remain scoreless in Belfast with 11 minutes on the clock.

Ulster clear their lines and are awarded a penalty just inside the Exeter half for offside.

Nathan Doak points to the posts.

Breaths were being held around the stadium from home supporters as Steve Varney burst clear.

He found Ross Vintcent inside and the number eight looked to be heading towards the try line but for a superb tackle from behind by Nick Timoney.

Stoppage in play in the Ulster half as a number of players receive treatment.

Ulster have yet to enjoy a prolonged period of possession with almost six minutes on the clock

BBC Sounds

You can listen to the game on BBC Sounds, BBC Radio Ulster and BBC Radio Devon.

On Radio Ulster, Orla Bannon is joined by Tommy Seymour, Ian Humphreys and Ian Witten, while Tony McWhirter and Jim Neilly are on commentary.

Hit 'watch and listen' above to play.

However, the Chiefs knock-on in the tackle and Ulster win a scrum 10 metres inside their own half.

First phase of play goes through the hands of the visitors but Ulster hold them up in the tackle and win the scrum.

But Exeter win a free-kick 30 metres out from Ulster's line.

Exeter get the game under way at the Affidea Stadium on a glorious afternoon in Belfast.

Image source, Getty Images

Ulster captain Iain Henderson said the province need their "full cohort" to compete in both the European Challenge Cup and United Rugby Championship.

Richie Murphy's side face Exeter Chiefs in a European semi-final at the Affidea Stadium before URC games against top two Stormers and Glasgow Warriors as they aim to secure a top-eight finish and passage to the play-offs.

The province have been hit with a spate of injuries recently, which led to Murphy fielding a youthful side in a 41-14 defeat by Munster as he looks to balance the demands of challenging on both fronts.

With the likes of Nick Timoney, Tom O'Toole, James Hume, Bryn Ward and Jude Postlethwaite back in full training, Henderson hopes they can finish the season strongly and end their 20-year trophy drought in one or both competitions.

"In comparison to last year, we've had a more favourable injury run. We do need a full cohort with the games we have ahead to compete on both fronts," he told BBC Sport NI.

"We've got to concentrate this week on the Challenge Cup, that's the game right in front of us. To have a home knockout match is incredibly exciting and really important, so we're looking forward to it."