Jonny Wilkinson will be fit to play for Toulon against Cardiff Blues at the Arms Park on Saturday, something the region's director of rugby, Phil Davies, could do without after a chastening 44-29 Heineken Cup defeat at Exeter in the opening round.

The Blues were 41-3 down early in the second half and Davies snapped at a reporter who asked him how a team with 13 internationals, including five Lions, could be so abject against a mid-table Premiership side and asked whether he anticipated calls for his head

"At the end of the day everything always comes back to me but I am not out on the field and we are all in his together," said Davies, who is in his second season in charge. "Exeter are far from a mid-table team – they are an outstanding team who are tough to play at home.

"We have to do what we have to do: pointing fingers and making rash decisions is no good. We have to stick together and get on with it. It is an understatement to say that we were not happy with the first half: it was not good enough at this level. We were a bit more like it in the second and we have to take that momentum into the game against Toulon."

Wilkinson was forced off during Toulon's victory over Glasgow on Sunday because he needed stitches in a cut hand. He will be available for the Heineken Cup holders this weekend, unlike his half-back partner Michael Claassens. The summer recruit from Bath broke a bone in his left hand during the 51-28 victory and will be out of action for six weeks.

New Zealand have failed to persuade Sonny Bill Williams to return to rugby union. The centre, who played in the 2011 World Cup, has committed to the Roosters in Australia for another year but the All Blacks hope that after that he will be lured by the prospect of a three-year deal that will take in the next World Cup and the 2017 Lions tour.

The uncertainty over the future of the Heineken Cup has not dissuaded Ulster's Ireland scrum-half Paul Marshall from signing a new three-year contract with the province.