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 WRU has teamed up with Crawshay's to tour Georgia in June. The side, which will be called the Crawshays WRU President's XV, will play Emerging Georgia twice, in a tour which supports the Welsh Government's efforts to grow relations between the two countries.
Wales Sevens are looking to re-group after a disappointing tournament last time out in South Africa. The next double leg in New Zealand and Las Vegas offers Gareth Williams a chance to redeem themselves.
Wales Women's head coach Rhys Edwards was at Llandovery to see the conclusion of an entertaining Women's Regional championship where any one of three teams were in contention for title glory on the last day of action.
Christmas has come early at Glynneath rugby club, one of a number around Wales who have received an array of merchandise and equipment this December courtesy of the Welsh Rugby Union's £750,000 participation points scheme.
The WRU have been delivering on the scheme - which gives individual clubs access to up to £5,000 worth of supplies and equipment each for the 2014/2015 season - over the last two weeks and today (Friday) were received by a special guest in Glynneath, club president and pitch marker Max Boyce.
As the countdown continues for RWC2015, Tournament Chief Executive Debbie Jevans visited the Millennium Stadium to discuss preparations for the eight matches and reveal the positive news that 100,000 tickets for games at the home of Welsh rugby have sold in the last seven days.
Jason Harries is targeting a first win on the World Series circuit this season with Wales. The series returns to action this weekend in Dubai where Harries is part of a team hoping to build from its efforts in round one in October.