So, our first set-piece of the evening. Which of these packs will start the better? The answer is Gloucester, as Nick Wood on this near side wins a penalty for the Cherry and Whites.

An amazing opening five minutes at Kingsholm. Again the visitors come forward, working it wide to the right-hand side to captain Dean Mumm, but as he homes in on the try-line Gloucester get enough bodies around him to keep him up and prompt a scrum five metres out.

Goodness me. After 24 exhausting phases of Gloucester attacking had taken them deep into enemy territory, Exeter Chiefs steal it at the base of a ruck and counter.

Phil Dolman's pace does some initial damage but Thomas Waldrom, the leading try-scorer in the Premiership, doesn't have the beans required to shake off Billy Twelvetrees and the number eight is forced into touch.

Kingsholm sounds in fine voice, with "Glaawwwssstterrr" ringing around the Shed. The home side have started quite brightly here and are approaching the Chiefs 22-metre line.

Irishman John Lacey is the man in the middle, and his whistle prompts Exeter Chiefs fly-half Henry Slade to boot long and get this semi-final under way.

Here come the two teams, Gloucester in their familiar red and white hoops and Exeter in their change-strip of black with green flashes. Kick off will soon be upon us.

BBC Radio 5 live sports extra

If you'd like to listen to live commentary of tonight's European Challenge Cup semi-final, you can tune in to BBC Radio 5 live sports extra by clicking the Live Coverage tab at the top of this page.

Alternatively, if you'd prefer the local angle, you can also listen to commentary from BBC Radio Gloucestershire and BBC Radio Devon via the same method.

Exeter Chiefs: Dollman; Whitten, Nowell, Hill, Jess; Slade, Chudley; Moon, Yeandle, Francis, Mumm (capt), Lees, Ewers, Horstmann, Waldrom.

Replacements: Taione, Rimmer, Brown, Skinner, Johnson, Lewis, Steenson, James.

Gloucester: Sharples; May, Meakes, Twelvetrees (capt), Purdy; Hook, Laidlaw; Wood, Hibbard, Afoa, Savage, Galarza, Kalamafoni, Kvesic, Evans.

Replacements: Dawidiuk, Murphy, Puafisi, Stooke, Moriarty, Robson, Burns, Macken.

Image source, Getty Images

Gloucester welcome back England flanker Matt Kvesic after he missed last week's Premiership defeat by Harlequins, while Henry Purdy comes back in on the wing.

Exeter Chiefs, meanwhile, have made just one change to the XV that beat league leaders Northampton Saints last weekend.

Back-rower Ben White misses out through injury so Kai Horstmann is promoted from the bench.

Gloucester centre Henry Trinder, who has a knee injury, on Twitter:, external A perfect night to do battle. Come on @gloucesterrugby would love to be out there!

Former England and Gloucester scrum-half Andy Gomarsall on Twitter:, external Kingsholm looking glorious tonight - Good luck @gloucesterrugby

Exeter Chiefs, in contrast, have been fighting on three fronts this season, having already finished runners-up in the LV= Cup and, sitting fourth in the Premiership, within a real chance of securing a play-off spot.

"If you're at the top end of the league at this stage of the season and you're getting into quarter-finals and semi-finals they always feel like the next biggest game," director of rugby Rob Baxter told BBC Sport.

"You can't keep going along saying every game you play is the biggest in the club's history, it doesn't really work like that.

"The semi-final to me feels like the result of a very good performance in the quarter-final."

I'm sure Gloucester will see the Challenge Cup as an opportunity to make amends for what has been a tricky league campaign this year, having struggled to ninth in the table with just seven wins from 19 matches.

"A huge amount of work has gone in, which hasn't been reflected by where we are in the league," Gloucester director of rugby David Humphreys told BBC Points West.

"We've managed to produce a real level of consistency in our European performances and that's given us the opportunity to have a home quarter-final and then a home semi-final.

"We knew there'd be some ups and downs and that it'd be a bit of a rollercoaster, but we are very confident we've moved forward."

So, who do you think will be taking Edinburgh on in next month's final? As always, you can get in touch with us using #bbcrugby on Twitter.

Image source, SNS Group

Last night, Edinburgh reached their first-ever European Challenge Cup final after a one-sided victory over Newport Gwent Dragons.

With the visitors penned into their own half, Stuart McInally and Tim Visser ran in first-half scores as Edinburgh reached the interval 21-9 ahead.

Brok Harris plunged over to reduce the deficit but the second of three yellow cards proved costly for Dragons.

With the momentum firmly back with the hosts, Ben Toolis, Sam Hidalgo-Clyne and Dougie Fife all added tries to confirm Edinburgh's place in next month's final.

Image source, Getty Images

A Premiership high-flyer beaten by a Top 14 giant at the sharp end of a European rugby union tournament. Sounds familiar, doesn't it?

I bring good news, however.

Sure, it might only be the European Rugby Challenge Cup, but in half an hour Gloucester and Exeter Chiefs will do battle for a place in the final at The Twickenham Stoop on Friday, 1 May.

And, with Edinburgh waiting in the final, there's not a French team in sight.

Welcome to our coverage of tonight's semi-final at Kingsholm.