Josh Bekhuis is one of only three players to have started every match for the Blues this season but is battling a calf injury ahead of his team's next assignment against the Lions in Johannesburg.
The lock, a key component of a lineout which is performing well this season after a few glitches last year, has been keeping room-mate, prop Sam Prattley, awake at nights with his icing activities.
Coach Tana Umaga will be hoping the 30-year-old, in his last season at the franchise before he moves to Lyon, recovers in time.
The Blues play the Lions at Johannesburg's foreboding Ellis Park on Sunday morning (NZT) buoyed by their 34-18 victory over the Kings in Port Elizabeth last weekend, their first away win in two years, but know a loss would quickly undo most of the good work.
Bekhuis has played a big role in the Blues pack this season with Patrick Tuipulotu in and out of form, and the Southlander has been showing plenty of application in attempting to get himself right for his 10th start in a row.