The British and Irish Lions remain hopeful that England prop Andrew Sheridan will be in contention for Saturday's second Test against South Africa
Sheridan is being treated for a back strain and he has not been involved for the Lions since last week's hard-fought victory over the Southern Kings in Port Elizabeth.
With Scotland international Euan Murray out of the tour due to an ankle injury, Lions boss Ian McGeechan has summoned front-row reinforcements in England's Tim Payne and Ireland tighthead John Hayes.
Both players start against the Emerging Springboks tomorrow, with Phil Vickery - who was destroyed by South Africa loosehead Tendai 'The Beast' Mtawarira in Durban two days ago and substituted after just 45 minutes - on replacement duty.
It leaves the door open for man-mountain Sheridan to make the Test 22, probably as bench cover for likely starters Gethin Jenkins and Adam Jones in an all-Wales front-row alongside hooker Matthew Rees.
"The medics are working on Andrew Sheridan, hopefully to have him fit for a full training session on Thursday," said McGeechan.
Peter O'Mahony was named man of the match against England last month
21 April 2017, 7:22pm
Peter O'Mahony's performance in the RBS 6 Nations finale for Ireland against England was crucial to his selection for the British & Irish Lions on Wednesday, Ireland and Lions defence coach Andy Farrell has revealed.