7. James Horwill
Horwill, who will turn 34 in the final week of the campaign, also captained Queensland Reds, as well as the Wallabies 16 times, in his 14-year professional career. He is currently in his fourth season with Quins, where he is co-captain.
8. Topsy Ojo
The former England winge is to retire at the end of this season after 16 years with London Irish. The 33-year-old is the Exiles’ all-time record appearance maker and try scorer, having made his debut in October 2005.
9. Darren Cave
Cave, who recently turned 32, made the announcement just days after featuring prominently in Ulster’s rousing display against Leinster in the Aviva Stadium, which ended in an agonisingly narrow defeat to the reigning champions.