The Blues struggling Super Rugby has taken another bad turn as utility back Rudi Wulf has been ruled out for the rest of the Super Rugby season.
Wulf's injury makes him the fifth Blues back to be ruled out for the 2012 Super Rugby season.
Twenty-eight-year-old Wulf discovered a broken bone in his shoulder six or seven weeks ago and a recent scan last week revealed that the bone had not healed.
Wullf will now have surgery on Wednesday which will rule him out of the Blues last two Suepr Rugby matches - against the Force and the Brumbie.
Blues coach Pat Lam admitted that losing Wulf was another ''blow to us''.
The Blues have also lost utility back/winger David Raikuna for the rest of the Super Rugby season after he broke his leg in last month's North versus South game.
The Blues have already lost backs George Moala, Gareth Anscombe and Isaia Toeava for the rest of the season with injuries.
Coach Lam has been forced to call in replacements with veteran Orene Ai'i, and promising sevens star Charles Piutau.
The Blues had a bye last week so they return this week to face the Force and Lam said that did plenty of work in the middle two weeks of the four week June break but took the first and last week off.
''Everyone's pretty refreshed and looking forward to our last game on Eden Park this season," Lam told Auckland Now.
"We want to finish this well and to do that it's going to require us preparing well.
"So everyone's in good spirits and we're looking forward to the week ahead."