Saracens’ George Kruis may miss England’s Six Nations campaign

• Second row faces up to eight week ban over tip tackle• London Irish name new director of rugby for next seasonThe Saracens and England second row George Kruis may miss the start of the Six Nations after being cited for a tip tackle on the Gloucester wing David Halaifonua during Friday night’s Premiership match at Kingsholm.Kruis, who was involved in all four of England’s autumn internationals as a replacement, was shown a yellow card for the offence by the referee JP Doyle who, after reviewing the incident on the big screen at the ground, felt the tackle did not merit a red card because if …