 Wales kept their pursuit of back-to-back Grand Slams on course but were made to battle all the way by England in a thrilling Six Nations encounter.Paul Sackey's try and an Andy Goode drop-goal saw England trail just 9–8 at half-time, Wales' points kicked by Stephen Jones and Leigh Halfpenny.Halfpenny scored Wales' crucial second-half try, with England's indiscipline letting Jones extend his side's lead.