Billy Vunipola faces a race against time to save his season after being carried off here as Saracens were dumped out of Europe by the Demolition Man.
The England number eight left Stade Marcel Deflandre on crutches with a serious knee injury suffered early in this heavyweight Champions Cup quarter-final clash.
“I’ve never seen Billy carried off before,” Saracens boss Mark McCall admitted. “It’s a huge worry. It doesn’t look good.”
