Big moment as Wasps prop Kieran Brookes puts in a massive tackle on halfway.

He gets a penalty too, and Jacob Umaga kicks into the Bears' 22.

This will be the first real test the visiting defence faces...

Danny Care
Harlequins and England scrum-half on BBC Radio 5 Live Sports Extra

There's a lot of nerves I think from both teams, there have been a few mistakes early doors.

Both teams just want to settle.

Image source, Getty Images

Wasps have their first attacking platform from a penalty, as Jacob Umaga kicks into the middle of the Bears half.

But Wasps lose momentum, and then Nathan Hughes forces a knock-on from Dan Robson at the breakdown.

First scrum of the day, and Bristol have the feed. In the end, they get a free-kick.

Bristol work the ball to the left and then Semi Radradra finds a bit of space.

He comes across to the right, and looks to throw a missed pass to Ben Earl on the touchline, but the ball goes into touch.

The Bears couldn't find a way into the Wasps 22 this time.

Wasps wing Josh Bassett makes contact with Chris Vui's shoulder while challenging for the kick-off, so Bristol kick up to halfway.

The Bears then win another penalty in midfield, with Jack Willis infringing this time.

This time Callum Sheedy can kick to the brink of the Wasps 22.

Wasps fly-half Jacob Umaga gets the game under way at the Ricoh Arena.

Can Wasps reach a first final since 2017, or will Bristol book their first trip to Twickenham?

Matthew Carley is the man in charge of proceedings.

Image source, Getty Images

The two teams are out on the pitch at the Ricoh Arena and kick-off is almost upon us.

After a week of preparation, their respective Premiership campaigns come down to the next 80 minutes.

Wasps head coach Lee Blackett and Bristol director of rugby Pat Lam have both favoured an attacking game this season.

Can their sides deliver when it matters?

Danny Care
Harlequins and England scrum-half on BBC Radio 5 Live Sports Extra

After the longest season it all comes down to these two games, there's so much to play for.

The two most exciting teams in the Premiership are on show at the Ricoh Arena.

Whether you are an Exeter, Wasps, Bristol or Bath fan - or an interested neutral - you can send us your thought's on today's action.

Simply include #bbcrugby in your tweets and we'll include the best ones in our coverage.

BBC Radio 5 Live Sports Extra

Alongside our live text coverage you can also listen to BBC radio commentary of the first semi-final clash.

BBC Radio 5 Live Sports Extra, BBC CWR and BBC Radio Bristol are all providing their take on proceedings at the Ricoh Arena.

Take your pick and simply click on the button above to listen to their coverage.

These semi-final matches have to be decided today.

If any match is level after 80 minutes, then extra time will be played.

That will be 10 minutes each way, with a one-minute break in between.

If nothing separates the sides at the end of extra time, then the winner will be the club which as scored the most tries in the match.

If the number of tries scored are the same, then there will be a place-kicking competition. We'll come to the rules of that only if we have to.

And before you say "it'll never end in a draw" - there have been three in the Premiership this season, and Bristol needed extra-time to win their European Challenge Cup semi-final last month.

Image source, Getty Images

Bristol Bears boss Pat Lam makes four personnel changes from their victory over London Irish which secured a top-four spot.

Callum Sheedy and Andy Uren form a new half-back partnership, while skipper Steve Luatua and number eight Nathan Hughes come into the pack.

Max Malins moves from fly-half to full-back to accommodate the return of Sheedy, who received his first international call-up by Wales during the week.

Bristol: Malins; Morahan, Radradra, S Piutau, O'Conor; Sheedy, Uren; Woolmore, Thacker, Afoa, Joyce, Vui, Luatua (capt), Earl, Hughes.

Replacements: Kloska, Y Thomas, Sinckler, Holmes, D Thomas, Randall, Bedlow, Leiua.

Image source, Rex Features

Wasps have captain Joe Launchbury and influential flanker Jack Willis back for their Premiership semi-final tie against Bristol Bears.

The re-introduction of the pair are the only changes from the side which beat Exeter last weekend to ensure home advantage in the semi-finals.

Winger Zach Kibirige is Wasps' top try-scorer in the Premiership with nine. Willis has eight, and fly-half Jacob Umaga has seven.

Elsewhere in the back line, the old stager Jimmy Gopperth has wracked up 143 points this season.

Wasps: Minozzi; Kibirige, Fekitoa, Gopperth, Bassett; Umaga, Robson; McIntyre, Taylor, Brookes, Launchbury (capt), Rowlands, J Willis, Young, Shields.

Replacements: Oghre, West, Alo, Gaskell, Barbeary, T Willis, Vellacott, Le Bourgeois.

Image source, Getty Images

Bristol Bears have impressed with the ball in hand this season, leading the charts on metres made, clean breaks, defenders beaten, passes and offloads.

The summer addition of Fiji star Semi Radradra added even more magic to their back line, but the Bears also possess a mean forward pack which has the highest scrum success rate and the most tries from mauls.

Alongside their first semi-final appearance in 13 years, Pat Lam's men have already secured a place in the European Challenge Cup final on Friday, with Toulon their opponents.

Bristol, who were relegated from the top flight in 2017, are three wins away from clinching a double.

Image source, Getty Images

Wasps come into this game having won eight of their nine Premiership matches since the season restarted in August.

Lee Blackett's men thrashed a much-changed Exeter side last weekend to finish three points behind the Chiefs in the table.

Wasps are the second-highest try scorers in the league this season, finishing with a bonus point in 12 of their 22 regular matches.

The Ricoh Arena side also boast a one-man turnover machine in Jack Willis.

The uncapped flanker has won 43 turnovers in the Premiership this season, a staggering 24 more than any other player.

Image source, Getty Images

This one could really be a thriller.

The first semi-final pits a high-scoring Wasps side against an equally attack-minded Bristol Bears.

Wasps dominated the Premiership in the early 2000s, winning three consecutive finals.

Their last title came in 2008, and Wasps were beaten finalists in 2017.

Opponents Bristol are making their first semi-final appearance in 13 years, and are targeting a maiden final at Twickenham.

The Bears were beaten 59-35 by Wasps at the Ricoh Arena in round 20 of the regular campaign in September, but the visitors put out a much stronger side this afternoon.

What an afternoon of rugby we have in store, as four clubs battle it out for a spot in the Premiership final.

Exeter Chiefs, Wasps, Bristol Bears and Bath are the quartet left standing following a mammoth season which was put on ice for five months because of the coronavirus pandemic.

Twickenham Stadium awaits for the winners of today's play-off semi-final ties.

Wasps face Bristol at 13:30 BST, with Exeter entertaining Bath at 16:30 BST.

It won't be long before the two teams are running out at the Ricoh Arena, so let's get down to it...

Image source, Rex Features