Owen Farrell faces a race to save his season after being injured booking Saracens a home Premiership semi-final.
The England captain limped off the Tottenham pitch in distress after a knock to the left ankle on which he had surgery 16 months ago.
Watched by his dad, Grand Slam winning Ireland coach Andy, Farrell had built Sarries a winning lead before going down clutching his foot. He left the field in obvious pain and sympathetic applause from the 55,109 crowd could not mask the concern around the stadium.