Wales flanker Sam Warburton, the Lions' fifth-youngest skipper, could miss out on Saturday's opener against the Barbarians due to a puffy knee.
Lions head coach Warren Gatland will tomorrow announce a starting line-up dominated by Wales players prior to nine games in Australia.
The match-day 23 on Saturday is set to comprise those players involved at training camps in Wales and Ireland during the past fortnight.
More than a dozen more who featured in last Saturday's play-off finals will gain their opportunities against Western Force and Queensland Reds next week.
British and Irish Lions have arrived in Honk Kong ahead of their warm up game against the Barbarians at the weekend. They've been providing a taste of what it's like to be tourists, as Dean Thomas reports.
The British and Irish Lions squad have landed in Hong Kong, according to their official twitter page.
The team take on the Barbarians on Saturday in the first leg of their summer tour.
The Lions are setting off for their tour of Hong Kong and Australia. Warren Gatland named 15 Welsh players in his 37-man squad including captain Sam Warburton. The tour kicks off on Saturday when the Lions take on the Barbarians at the Hong Kong Stadium.
Wales and Lions full-back Leigh Halfpenny says the battle for the full-back jersey will see him reach new highs.Read the full story ›
Welsh rock band Manic Street Preachers have scheduled shows in Australia and New Zealand around the fixtures for the forthcoming British & Irish Lions matches.
They head to Australia towards the end of June and will play shows in Melbourne and Sydney to coincide with matches against the Wallabies, as well as heading to Auckland during a break between games.
The trio recorded a track called 'Australia' in 1996, which was used in ad campaigns by the Australian Tourist Board, but they have not visited the country since 2010.
The visit to New Zealand is understood to be their first.
The group said: "As massive rugby fans the chance to visit one of our favourite countries - play some gigs and watch the British and Irish Lions play Australia is an amazing once in a lifetime opportunity.
"We can't wait to play a selection of our greatest hits to our Australian fans and the thousands of Lions fans travelling Down Under."
Yesterday coach Warren Gatland named 15 Wales players in his 2013 Lions squad, with Sam Warburton as captain.
The squad who will prepare for the two-test tour of Japan will be announced by Robin McBryde today. The 'Brave Blossoms' will take on the world's sixth-ranked team in Osaka on June 8 and in Tokyo on June 15.
The First Minister has told AMs that the inclusion of 15 Welsh players in the Lions squad is a good omen for a successful tour of Australia this summer.
History shows that the Lions do best when there is a large Welsh contingent.
Carwyn Jones was responding to the Leader of the Opposition, Andrew RT Davies, who said that having so many players selected was a great achievement for a small nation.
Warren Gatland says Sam Warburton's professionalism and leadership skills are the reasons he selected him as his captain.
In the last two or three years he's been the most successful captain in the Northern Hemisphere.
I have a huge amount of respect for Sam. He's an absolute professional and he leads from the front.
Gatland admitted it had been tough to leave out the likes of Robshaw and Wilkinson.
There was a robust debate about the squad and there were healthy discussions for every position.
Some real quality players have missed out. We had a thorough process and it's been tough.
He did offer hope to those left out, however, saying: "If you look at previous tours, six to eight players get injured and there will be a group of back-up players who can be called upon."