Justin Burnell's side take a 19 point advantage in to the second leg against Bristol.
London Welsh may take a 19-point lead into the second leg of their Greene King IPA Championship final with Bristol, but they'll head to the Memorial Stadium next week still targeting a win.
Tries from Nathan Trevett, Nick Scott and Carl Kirwan helped Welsh to a 27-8 victory over Bristol in front of over 5,000 fans at the Kassam Stadium on last night, with the return leg to come on June 4.
"We will be going there with the mind-set that we have to win the game," said London Welsh head coach Justin Burnell. "That will be our focus; we've got to go and win the game.
"We've still got a long way to go - there's another leg to play. We know how good Bristol are - they're capable of scoring points. We're happy with the three tries and 19 points. Is 19 points enough? I'd rather be 19 points up than 19 points down.
"In hindsight we should be going there 26 points [up] - I honestly thought Nick Scott was under the posts. But at least we're in the right areas.
"It's all about next week and the preparation for us.
"We're a pretty tough bunch and we don't roll over. We saw that in respect to Leeds in the semi-final. Thirteen points down we were dead and buried and everyone wrote us off.
"That's one thing we have got, spirit. Aside from the 19 points we'll also be taking a lot of spirit with us [into the 2nd leg]."
Wales reached their first semi-final since 2013 in the opening round of this season's HSBC World Rugby Sevens Series in Dubai. WRU TV's Graeme Gillespie recaps on what proved to be an eventful tournament
Wales and Ospreys back row James King, who came through the North Wales age grade system, nominated North Wales Regional Community Rugby Manager Marc Roberts, in the WRU's 'Diolch' initiative where squad players thanked those who played a part in their rise to the top.
Beating Merthyr has boosted Carmarthen Quins hopes of reaching a top eight spot in the Principality Premiership. Quins captain Haydn Pugh is delighted with his team's progress and is determined that everyone from the Under 6s through to the senior team, enjoys the ride.
When the Wales squad were asked to nominate individuals who played a big part in their early playing days, Wales and Dragons full back and wing Hallam Amos thought of his former Monmouth School rugby coach John Bevan.
Sam Cross and Luke Treharne have been named as co-captains of the Wales Sevens side as head coach Gareth Williams names his 12-man squad to play in the first leg of the HSBC World Series in Dubai next weekend.
Bedwas head coach Steve Law and players Nicky Griffiths and Alun Rees extol the virtues of the close knit club as they prepare to host third place RGC 1404 - who are one place head of them on the Principality Premiership points table - on Saturday.
Many of the Wales squad have said Diolch (thank you) to someone who played an important part in their early playing days by nominating them to be invited to the Wales v South Africa match. One person, Gowerton Comprehensive geography teacher Mr Dean Mason was nominated by two of his former pupils, Dan Biggar and Sam Davies.
The second WRU disability rugby pilot has been delivered, this time in Caerphilly schools, culminating in a festival at the Caerphilly Centre of Sporting Excellence, Ystrad Mynach tomorrow. Plans are in place to set up a Disability Rugby Club in Newbridge to provide long-term playing opportunities.
WRU TV: Hear from inside the Wales camp as Neil Jenkins discusses this weekend's clash with South Africa and how the squad are looking to put in a strong performance to round of the 2016 Under Armour Series