In some ways the author of this column would rather state if he had a favourite child, or parent, than declare that he has a favourite starting Lions fullback. Ruining the confidence of your parents/offspring and destroying the dynamic of a loving family somehow feels like the sensible option when compared to the nuclear social media fallout of stating a preference for a particular player. It comes to something when you’d rather shatter the unconditional love of a family member rather than face a flurry of direct messages at 2am from a bloke who’s on his eighth can of unnecessarily strong craft lager, but such is the massive interest in the Lions and the debate that follows – it’s why we all love it.
The family metaphor above is, of course, hyperbolic, but to continue its overuse, when it comes to selecting the Lions’ starting full-back for the Australian tour, Blair Kinghorn and Hugo Keenan are the two favourite children. There are of course other members of the full-back family who could get selected, but at this moment in time they feel more like distant cousins. Marcus Smith is of course playing full-back for England currently and will undoubtedly be on the tour due to his versatility in playing both ten and fifteen at Test level. Freddie Steward is also not without his merits, especially with the current law tweak requiring no ‘blockers’ being allowed to stand in front of the player catching the ball. Plus, there’s also Blair Murray who for Welsh supporters in recent weeks has been the reassuring stroke on the head that many of use required.
Whilst favouring a particular Lions’ player over another has always caused foaming from the mouth, it’s made even more difficult on this tour in that favouring Kinghorn over Keenan is something that seemed unthinkable two seasons ago. Hugo Keenan is a magnificent player and has been for the past four seasons. He has feathers in the air, has positioning which makes even modern GPS appear iffy, tackles like a savannah-dwelling mammal protecting its young and hits the line as well as anyone in test rugby. However, this was all before December 2024, when Blair Kinghorn joined Toulouse – since then a lot has changed.

Kinghorn was a tidy player when he was at Edinburgh. Switching between ten and 15, he let no one down, but now at Toulouse, he’s solid gold. At 6ft 5in, he is literally head and shoulder above all most backs in the game and it’s not height for height’s sake. As we’ve seen during this Six Nations, Kinghorn’s work in the air has been superlative. With the recent tweak to the law regarding ‘blockers’ under the high ball, strapping fullbacks are back in fashion. The days where you could rely on three forwards to block the chasers and protect you from the initial tackle are over – full-backs once again need to be able to catch the ball and also catch a clout when they land. But Kinghorn isn’t a ‘big’ full-back whose size comes at the detriment of speed, he’s also incredibly rapid and gobbles up the turf beneath him. Anecdotally he’s the fastest in the Scotland squad and once you have big people running at big speeds, they cause big problems.
Kinghorn carried double the distance of any other player in the competition – that’s right double. He carried 857.9m, the next closest was Duhan van der Merwe with 478m. During this Six Nations he has required a double tackle at minimum in the wide channels and he has the receipts to prove it – he was top for linebreaks with nine. He either broke the line when the ‘double tackle’ didn’t arrive or dished off a pass when it did – he was also the top off-loader in the 2025 Six Nations (13).
Whilst we’re talking about Finn Russell, his likely selection as the starting outside half would provide another reason to select Kinghorn at 15.
Together with Finn Russell’s long accurate miss-passes, Scotland were able to get to ‘the edge’ more quickly and regularly than arguably any other team in the championship. At times they were seemingly able to generate overlaps, from first phase, which simply doesn’t happen in modern test rugby. Where most teams were trying to find the edge, Scotland seemed to have happily dangled their feet over it for the much of the Six Nations.
Whilst we’re talking about Finn Russell, his likely selection as the starting outside half would provide another reason to select Kinghorn at 15. When we talk about combinations with outside halves, the old-school narrative would focus on who’s playing at nine or 12 – inside and outside the ten. But in the modern game the link with the 15 is as important. With the 15 often being the ‘out the back’ option, having a 15 who understand his 10 (and vice versa) is as important as the link between the nine and 12.

One argument that is sometimes used against Kinghorn is that he isn’t really a modern back-three player. In that he’s viewed as a 10/15 not a 15/14/11. For some reason people tend to think that he can’t switch between wing and fullback as seamlessly as other back three players. But whilst that may have been true in Edinburgh (where he largely played at ten at 15), at Toulouse he has featured on the wing on plenty of occasions.
Hopefully this column hasn’t come across as a denigration of Hugo Keenan, who is a fantastic player. The reality is that Keenan would be more likely to fit into Farrell’s system for obvious reasons. However, based on form, stats and the laws as they stand, Kinghorn should be inked in as the starting 15, when the First Test comes around on July 19 in Brisbane.
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When did Scotland last beat Ireland ?
QED !!
Farrell has a decision in principle to make- does he pick players who will miss the start of the tour? Whether Toulouse make the final of the Top 14 or not, Kinghorn and Willis are contracted to them until the end of June. If Kinghorn is selected, he will probably have played little rugby for the month of June since he does not make the Toulouse starting team at full strength.
Kinghorn without doubt.
Keenan is excellent but he doesn't provide the game breaking X-Factor you get with Kinghorn. If Kinghorn was unavailable it'd be Keenan by a mile but Kinghorn is too good.
I can see arguments for both Kinghorn, and Keenan starting for the Lions. But I’m less convinced by some of the claims (clearly partisan) supporters are using to argue the merits of one over the other.
For example, a number of Ireland supporters have suggested Kinghorn is ‘defensively weak’. That’s patently false - or at least on the evidence of this 6N, he’s certainly no weaker there than Keenan is, who is presumably the comparative standard they’re using. Keenan was both shrugged off in contact, and beaten on the edge for pace, a number of times during this competition.
Equally, Scotland supporters arguing Kinghorn is the more capable ‘rugby player’ seem to have overlooked the (frankly sizeable) body of evidence demonstrating that Keenan is an excellent ball in hand distributor and decision maker. So that doesn’t hold up under scrutiny either.
I don’t think there’s all that much to choose between them, and either would be a strong choice. I think it would be really interesting from a pure rugby perspective to see Keenan playing a ‘Scotland-esque’ style of high tempo attacking rugby. Either coming into the line more routinely as first receiver, or being swung as a pendulum and getting the ball on the edge against a stretched defence.
That’s assuming Andy Farrell goes that route, of course. He may well just opt for his Ireland system instead, and populate it with the likes of Henshaw, Ringrose, Lowe and Keenan. I’m sure that would win the series. Quite what effect it might have on a Lions audience who were expecting something other than ‘Ireland on tour, but wearing red’ would remain to be seen.
As for the debate at FB, the only ‘eye test’ difference I feel exists is in the pace of rugby Kinghorn (Toulouse? Scotland?) tends to play. His passing/offload game feels crisper and higher tempo than Keenan’s - and as we saw in Paris, his pace and eye for a gap from deep are superior.
But again, that will only prove a decisive factor if Andy Farrell wants to play that way. If all he wants from his FB is to sit deep, field high balls, and mop up then there’s little between these two equally excellent players.
A fair analysis but i think the comment about the pace of Kinghorns game and crispness of his passing makes a big difference but another key difference is kinghorns ability to get his hands/arms through the contact and look for the offload
Another who wish Toulouse will not play top14 final….
Kinghorn was easily the best 15 in the M6N and should certainly start the tests but the only challenge is that he will join the tour late miss 2-3 matches and have less time to bond with the group.
Less of a problem if he is selected alongside a scottish 10/12/13 thou
When did Scotland last beat Ireland even with their supposed better back line ?
Keenan will be the starting Luons 15 because he is the best full
Back in the Northern Hemisphere .