Wilko injury gives England headache
Wilkinson, whose Test career has been blighted by repeated injury setbacks since his drop-goal won England the 2003 World Cup, lasted just 25 minutes at Kingsholm as Gloucester posted a bonus-point Guinness Premiership victory.
He was helped away after appearing to hurt his knee when he was cleared out of a ruck which formed following a trademark Wilkinson tackle on Gloucester fullback Olly Morgan.