The 26-year-old lasted just 60 minutes into his eagerly anticipated comeback game as the Scarlets were beaten by Edinburgh 21-15 in their first Celtic League fixture. Jones had not played since picking up a groin injury in the 11-9 Six Nations win over England in February.
And the heartbreak of missing the remainder of Wales's famous Grand Slam has been compounded by the news that he will now miss the autumn internationals. Despite having an operation on Tuesday, Jones will not have recovered in time to face New Zealand, South Africa, Australia and Fiji later this year.
"It's hugely disappointing for us but more importantly it's a devastation as far as Daf is concerned," said Scarlets director of rugby Gareth Jenkins. "It was a big comeback this season for him, something he's really been looking forward to having missed most of last season and the celebrations that went with the RBS Six Nations win.
"He took a knock which resulted in a ligament snapping in his finger which then detracted into his arm. There was no alternative really - it was either losing the use of that finger or having surgery to bring the ligament back into the finger and repairing it."
The Welsh Rugby Union has announced a major new sponsorship deal with Gullivers Sports Travel which will make the UK's leading, and longest established, multi-sport tour operator, an Official Supplier for the rest of the decade.
Having taken part in seven World Cups as a player and coach, Liza Burgess hopes to go out in style this afternoon when Wales take on Australia in the Play-off for seventh and eighth place in the Women's Rugby World Cup in Paris.
WRU Head of Rugby Josh Lewsey met with volunteers across the game earlier this week, championing their role in the sport. He was joined by Wales captain Sam Warburton for part of the day as volunteers took part in a 'Try Out' event for the 2015 Rugby World Cup
Wales Women may not have got the results they wanted recently on the field, but off it they have made massive strides in strength and conditioning - and that is in no small part due to S&C coach Sam Dodge.
Two weeks into the new pitch project at Millennium Stadium, Groundman Craig Campbell takes staff on a unique behind-the-scene tour of the works so far and National Squad Assistant Strength and Conditioning Coach John Ashby and Tour Guide Peter Owen describe what the revamp means for them.
Try-scorer Jenny Davies and fellow prop Megan York reveal to WRU TV's Graeme Gillespie their thoughts after Wales broke their drought in the Women's Rugby World Cup with a 35-3 win over South Africa in Paris.