The British and Irish Lions have suffered a second major injury blow inside 24 hours.
Wales prop Gethin Jenkins has not recovered from a calf muscle strain that ruled him out of today's game against Queensland Reds, and he will return home tomorrow.
Ireland prop Cian Healy is also departing Australia tomorrow, having been ruled out by ankle ligament damage suffered during last Wednesday's victory over Western Force in Perth.
Alex Corbsiero arrived in Brisbane from England's tour of Argentina today. He was summoned as injury cover for Healy.
And Scotland's Ryan Grant, who had been in South Africa preparing with Scotland to face Samoa later today, is due to join the Lions ahead of tonight's kick-off against the Reds.
Jenkins and Healy were expected to battle it out for the Lions number one shirt against Australia, but they have now both been ruled out of contention a fortnight before the Test series starts.
Assessing Jenkins' situation, Lions team doctor James Robson said: "The expected time for recovery is at least three weeks.
"Given the remaining duration of the tour, we felt that Gethin should return home and continue his rehabilitation there."
England's Mako Vunipola will start against the Reds, while it is likely that either Corbisiero or Grant can expect a starting role against a Combined Country XV in Newcastle next Tuesday.