Ryan came off early in the first halfwith a calfinjury in the demolition of Connacht last Saturday
With qualification for the knock-out stages already guaranteed, Leo Cullen's rampant Blues' next target is to secure top seeding to secure a semi-final at the Aviva Stadium should they progress to the last four.
However the indications are that the second row hasn't suffered a problem that will make him a Six Nations doubt for Ireland."It's certainly not a long-term injury by any stretch of the imagination. But he won't be training today and we'll obviously have to make a call by Wednesday, really. It's a Sunday game, which gives us a longer lead-in time.
Over 17,000 tickets have already been sold for Saturday's encounter, so it is on course to be a sell-out. "It takes time to strengthen the ligament, to start running again and everything that goes into being back fit again and playing a robust game like rugby.
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