Ciarán Frawley's knee surgery will keep him out for up to four months - but Leo Cullen advises the Ireland hopeful not to worry about missing out on his Ireland debut.
Frawley was expected to make his Test debut this month but suffered a twisted knee 11 days ago while playing for Ireland A against the All Blacks XV.
"It looked really innocuous," said Blues boss Cullen. "That’s just the nature of the game - we’re involved in contact sport, that’s the business that we’re in.