Ireland fly-half Sexton trudged off after just 48 minutes of the Lions’ opening tour clash in New Zealand, removed in part due to a potential leg injury – but also after a miserable performance.
Asked if Sexton was injured, Lions head coach Warren Gatland replied: “No, no he wasn’t no.
“A couple of our guys picked up back spasms – Ross Moriarty and Kyle Sinckler.
“We did community work with the guys sitting in cars for five hours. And they’re all probably still recovering from the flight as well. The doctor is confident they will be fine."
Warren Gatland will make change the entire Lions squad in their next match
Johnny Sexton endured a torrid time against the Provincial Barbarians
Self-employed maintenance engineer Sam Anderson-Heather’s converted try put the Barbarians 7-3 ahead at the break, with Farrell forced to rescue the tourists in a wholly unconvincing victory.
Sexton boasts 66 caps for Ireland and three for the Lions, but was eclipsed by his opposite number, Bryn Gatland, the 22-year-old son of Warren.
The Lions boss said: “There are certain things we’ll look at individually, to some decision-making from the game and where we can improve from here.
"There's a few things collectively, but definitely individually some of the decision-making that will help us improve moving forward in the next few games.”
British & Irish Lions squad for 2017 New Zealand tour Mon, May 22, 2017
Express Sport runs through the confirmed Lions squad for the 2017 tour to New Zealand
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Express Sport runs through the 37-man Lions squad ahead of the New Zealand tour
England star Farrell had hardly set foot on the sodden Toll Stadium turf when he supplied the scoring pass for Anthony Watson’s decisive try.
After penalties from Sexton in the first half and Greig Laidlaw after the break, Farrell took over the kicking duties to convert Watson’s score and the Lions held on, but this was a match where they ought to have powered home – not simply inched across the line.
The Lions move quickly onwards to face Blues in Auckland on Wednesday, and will know full well they must improve out of sight to cope with full-strength Super Rugby sides – let alone the back-to-back world champion All Blacks.
Gatland insisted he will stick to his plan of fielding an entirely different starting XV at Eden Park.
Asked how many changes he will make on Wednesday, the head coach said: “There will be 15. The plan is everyone gets a start in the first three games, and I’ve been continually saying that.”