The 22-year-old broke a bone in his thumb in the league win over the Blues, and he will miss the crunch Heineken Cup games with Gloucester and Bourgoin.

BBC: Ospreys hit by injury to Bishop

The Lions also lost Ireland hooker Jerry Flannery, who chipped a bone in training before the tour, Welsh centre Tom Shanklin, who dislocated his shoulder playing for Cardiff Blues, and Ireland scrum-half Tomas O'Leary, who broke his ankle playing for Munster.

BBC: Injured Ferris out of Lions tour