Welsh rugby legend Shane Williams believes that Warren Gatland will be "rubbing his hands" following the performance of Ireland's half-back line in the Six Nations win over France last Saturday.
There may be a lot of rugby left to play before the head coach is faced with selecting his first British & Irish Lions starting XV but already there have been calls for Conor Murray and Johnny Sexton to be given the 9 and 10 shirts.
Williams was a member of three Lions squads, scoring two tries in four Test matches, and he told 98FM Sport today that having a tried and tested pairing is an advantage.
"It's great to go into a Lions tour with a combo...with a combination of players that are used to each other.
"And at the moment, Sexton's been injured as well, to come back and play like he is. The best nine and ten combo in the world I'd say and of course I'm sure Warren Gatland's rubbing his hands!"However, Williams doesn't really feel it is that straight-forward.
"There are good nines and tens out there as well. Dan Biggar is a good player, okay he didn't have his best game last week.
"Rhys Webb who, despite Wales losing last week [vs Scotland], was a live-wire throughout. Yea...I think it's another difficult decision that Warren Gatland has to make.
"I think the easy one is to say, look Sexton and Murray have played together for years and years and years.
"Sexton's been away, he's come back, he's had one game with Murray. They've both come off the field, pretty much with the man-of-the-match performances.
"That would be an easy transition straight away and I'm sure Warren Gatland will be looking at that."
England's Owen Farrell won his 50th international cap at inside centre against Italy at the weekend but Williams wouldn't rule out the proven outhalf splitting the Irish duo.
"Farrell at the moment is playing really well for England. Does Warren Gatland go in and play Farrell as a second distibutor, as a twelve or does he think he's a ten?"
Williams will be appearing in the new series of The Toughest Trade which airs tomorrow night (Wednesday 1st) at 21:30.
Wales' record try-scorer swaps with Donegal star forward Michael Murphy with Williams temporarily joining Murphy’s club Glenswilly to play Gaelic Football.
Murphy was sent to France to team up with Top 14 side Clermont Auvergne before both men take part in a final challenge set by AIB and designed to test whether GAA club players can compete at the same level as professional athletes.