Ireland World Cup lock Iain Henderson could make his long awaited comeback from injury in Ulster's crucial Guinness Pro 12 clash against Glasgow Warriors on Good Friday.
The 24-year-old has been sidelined with a torn hamstring since early December, but Ulster's director of Rugby Less Kiss said on Tuesday he could feature against Glasgow.
A clearer idea of his likely involvement in Friday's fixture will be known after training tomorrow.
Ulster could also have some of their Irish internationals back after the Six Nations.
Backs Andrew Trimble and Jared Payne could feature at some stage in the match at Scotstoun, probably as replacements.
Full-back Louis Ludik is expected to return to the team after recovering from a groin injury.
In other news ahead of the weekend action, Connacht have confirmed that Shane Delahunt, John Cooney and Andrew Browne have all resumed full training and are available for selection to face Leinster in the Pro12 on Saturday.
Robbie Henshaw, who started all five games of the RBS 6 Nations, is expected to join up with squad on Thursday as they prepare for the Sportsground clash.