Ulster may face a further blow after their Heineken Cup exit as they await updates on the fitness of Ruan Pienaar and Rory Best.
The pair limped off during the 14-man province's 17-15 loss to Saracens on Saturday, and there are fears both may miss Ulster's vital PRO12 run-in as they target a playoff spot.
Pienaar, very much a talisman for Mark Anscombe's side, endured a recurrence of the shoulder injury that had threatened to rule him out of the quarter-final, but played on until just after half-time.
The Springbok scrum-half joined Ireland hooker Best - he himself in a rich vein of form - who was seen on crutches by the sideline after damaging an ankle.
There were also concerns over Kiwi number eight Nick Williams and Ireland flyer Andrew Trimble, who was withdrawn showing signs of concussion and did not return.