James Mortimer 24.Feb.2014Getty Images
Centre Ryan Crotty joined McCaw on the sidelines during training sessions today, with the utility back also having his calf looked after.
Neither injury is considered serious and it is possible both could play, but the Crusaders medical team will err on the side of caution as such innocent complaints can lead to long stints out of the game if torn.
Matt Todd, who impressed against the Chiefs, will likely earn his first 2014 start at openside flanker if McCaw is either ruled out or named on the bench.
Taylor could join Reynold Lee-Lo in the Crusaders midfield in what could be a heavily changed backline.
McCaw’s absence during the seven-time champions first session of the week was eased when he was seen walking freely, but coach Todd Blackadder will manage the most capped All Black off all time carefully, especially with quality options in the back row stocks.