Richie McCaw doubtful for clash with the Blues
The expression of Richie McCaw's face says it all after the Crusaders missed seven penalties in an 18-10 loss to the Chiefs.
Crusaders fullback Israel Dagg runs at Liam Messam during the season opener.
Crusaders wing Nafi Tuitavake runs away from Chiefs lock Brodie Retallick.
Almost 17,000 Crusaders fans packed into Christchurch Stadium for the season opener.
Crusaders prop Tim Perry is taken down by Charlie Faumuina.
Richie McCaw eyes up a tackle on George Moala before leaving the field injured.
Colin Slade celebrates his first half try against the Blues.
Crusaders Colin Slade (right) and Reynold Lee-Lo fail to secure the ball under pressure from George Moala.
Stormers captain Jean de Villiers and the Crusaders' Kieran Read await a referee's decision during their clash in Christchurch.
Johnny McNicholl of the Crusaders celebrates the final whistle following his side's comeback win over the Stormers.
The Crusaders cheerleaders get the crowd going before kick-off against the Stormers.
Sam Whitelock reaches highest to claim lineout ball for the Crusaders against the Chiefs.
Captain Kieran Read chats to his forward pack during a break against the Rebels.
Israel Dagg attempts to get himself out of the grasp of a Melbourne Rebel.
Israel Dagg unleashes a punt downfield.
Crusaders first-five Colin Slade fires a pass to his outside backs.
Crusaders Kieran Read (left) and Nafi Tuitavake rush to congratulate hooker Ben Funnell after scoring.
Wyatt Crockett of the Crusaders tries to offload under pressure from Jeremy Thrush of the Hurricanes.
Ryan Crotty makes a break for the Crusaders against the Hurricanes in Christchurch.
The Crusaders players look dejected after losing to the Hurricanes at the death.
Nemani Nadolo makes a charge down the wing for the Crusaders against the Hurricanes.
The Crusaders' Kieron Fonotia and Owen Franks get to grips with Schalk van der Merwe of the Lions.
Nepo Laulala of Crusaders tackling Faf de Klerk of Lions during the teams' clash at Ellis Park.
George Whitelock and Matt Todd of Crusaders smash Lions No 8 Warren Whitley.
Crusaders lock Sam Whitelock takes a charge at the Lions defence.
Crusaders No 10 Colin Slade goes on a run against the Cheetahs in Bloemfontein.
Crusaders halfback Willi Heinz floats a pass out in his teams clash with the Cheetahs.
Crusaders captain Kieran Read breaks away from the back of a maul against the Cheetahs.
Ryan Crotty swats the Cheetahs defence out of his way in Bloemfontein.
Quade Cooper of the Reds is tackled by Wyatt Crockett of the Crusaders.
Richie McCaw of the Crusaders takes the lineout during the round 13 Super Rugby match between the Reds and the Crusaders.
Luke Whitelock of the Crusaders breaks away from the defence to score a try during the round 13 Super Rugby match between the Reds and the Crusaders.
Johnny McNicholl of the Crusaders celebrates with team mate Israel Dagg after scoring a try during the round 13 Super Rugby match between the Reds and the Crusaders.
Johnny McNicholl of the Crusaders scores a try during the round 13 Super Rugby match between the Reds and the Crusaders.
Nemani Nandolo of the Crusaders storms down the sideline during the Chiefs and Crusaders Super Rugby match.
Brodie Retallick of the Chiefs and Samuel Whitelock of the Crusaders wrestle off the ball during the Chiefs and Crusaders Super Rugby match.
Willi Heinz of the Crusaders in action during the Chiefs and Crusaders Super Rugby match.
Samuel Whitelock of the Crusaders has a word with a team-mate during the Chiefs and Crusaders Super Rugby match.
Pat McCabe of the Brumbies is tackled by Israel Dagg of the Crusaders.
Colin Slade of the Crusaders kicks a conversion during the round 12 Super Rugby match between the Crusaders and the Brumbies.
Sam Whitelock of the Crusaders is tackled during the round 12 Super Rugby match between the Crusaders and the Brumbies.
Nemani Nadolo of the Crusaders dives over to score a try during the round 12 Super Rugby match between the Crusaders and the Brumbies.
Julian Savea celebrates the Hurricanes' win over the Crusaders during their Round 17 Super Rugby match at Westpac Stadium in Wellington.
Dan Carter of the Crusaders looks to make a break against the Hurricanes during his first Super Rugby appearance of the season.
Ryan Crotty, captain of the Crusaders, is tackled by Ardie Savea of the Hurricanes during their Super Rugby clash at Westpac Stadium in Wellington.
Andy Ellis of the Crusaders and Dane Coles of the Hurricanes scuffle during their round 17 Super Rugby match.
Nemani Nadolo crashes over the line for the Crusaders under pressure from a stern Blues defence.
Crusaders centre Ryan Crotty has a cut at the Blues' line with Andy Ellis in support.
Crusaders wing Nemani Nadolo on the charge against the Blues at AMI Stadium in Christchurch.
Blues star Ma'a Nonu is tackled by Dan Carter of the Crusaders during their round 18 Super Rugby match in Christchurch.
Andy Ellis, centre, of the Crusaders is tackled by Blues players Tony Woodcock (left) and Luke Braid (right) during his side's win in Christchurch.
Crusaders lock Dominic Bird powers through a number of would-be Blues defenders at AMI Stadium in Christchurch.
Nemani Nadolo of the Crusaders dives over to score a try against the Blues in round 18.
Crusaders second-five Dan Carter is tackled by All Blacks team-mate and Blues prop Tony Woodcock.
Jerome Kaino of the Blues is tackled by Andy Ellis of the Crusaders during their round 18 Super Rugby match in Christchurch.
Colin Slade shows his courage on a scything run against the Highlanders in round 19 of Super Rugby.
Crusaders wing Nemani Nadolo fights for the ball in midair with Highlanders opposite Richard Buckman.
New Zealand's top first five eighth Dan Carter on the break against the Highlanders.
Israel Dagg shows his deft touch, unloading the ball while aerial in the tackle of Highlanders wing Patrick Osbourne.
A Crusaders horseman spurs cheers from the Christchurch crowd ahead of their clash with the Highlanders.
Richie McCaw may be in doubt for Friday night's encounter against the Blues at Eden Park.
The openside flanker is nursing a tender calf after the Crusaders' 18-10 loss to the Chiefs at Christchurch Stadium last weekend. If he is ruled out of their second-round Super Rugby match against the Blues, Matt Todd will be awarded the No 7 jersey. McCaw didn't participate in the warmups during training at Rugby Park today and Crusaders coach Todd Blackadder will be cautious about pushing the 33-year-old McCaw back too soon. Calf injuries can take an age to heal if aggravated. Todd has always proved a capable performer at openside whenever McCaw has been unavailable in recent years. Although the All Blacks skipper remains without peer in his preferred position, he will not be risked if not fully fit. Midfielder Ryan Crotty had his calf strapped and although he was in his gear he was a spectator at training. "There are clouds over a few people who are in contention - Richie is straining a little bit, he has got a little bruise there and Ryan Crotty is not doing a full training today," Crusaders assistant coach Tabai Matson said. "We got dinged up, as they [the Chiefs] did, so we are just taking a few days to recover." First five-eighth Colin Slade, who was not considered for the side to face the Chiefs because of a calf complaint, should be available for selection if he proves his fitness. Slade participated in the warmups and looked to be running without discomfort. Blackadder will be keen to have him back after Tyler Bleyendaal missed five penalties against the Chiefs. He was replaced by Tom Taylor at halftime. Captain and No 8 Kieran Read confirmed he was available to start after being rested from the Chiefs match. If Crotty fails to recover, Taylor is likely to start at second five and Reynold Lee-Lo would probably remain at centre.