Six Nations 2013: Hamstrung lock Richie Gray ruled out of Scotland's final game

Richie Gray was carried off after 30 minutes on Saturday (PA)

Scotland's bleached blond bombshell, lock Richie Gray, will have a scan on Monday to determine the extent of the hamstring injury that caused him to depart on a medical cart 30 minutes into the 28-18 defeat against Wales at Murrayfield on Saturday.

The team doctor, James Robson, confirmed that the 6ft 10in Sale Shark would miss his country's final Six Nations fixture against France in Paris this coming Saturday but it is unclear as yet whether he will be out of contention for selection for the British and Irish Lions' summer tour to Australia.

"Richie is due to be scanned at the Spire Murrayfield Hospital tomorrow with a view to a more accurate assessment of the injury he sustained on Saturday," Robson said. "We'll have a better understanding then of the degree of injury to the muscle. Richie is on crutches at present and is grateful for the good wishes from supporters. He will play no further part in this year's championship. It would be premature to speculate further at the moment."

The former Scotland captain Al Kellock replaced Gray against Wales and is likely to fill the vacant starting role alongside Jim Hamilton in the second row against France.

Hooker Ross Ford admitted Scotland had taken a backward step with Saturday's result, with the positive signs shown in earlier wins against Italy and Ireland completely missing against Wales.

"It's never good to lose, but we didn't give ourselves much of a chance. We allowed Wales to control the game quite well," Ford said. "Now we just need to look at the video and work out where we can improve. It's always the basics that are most important and against the Welsh it was a lot of basics that let us down. We need to keep working hard there and try and rectify that before France next week. But we are very frustrated. We didn't control the game well enough. We made it hard for ourselves to get control and momentum. It's a step back for the team, given how things have been going."