Six Nations: Brian O'Driscoll is the best centre ever - Stuart Lancaster

England rugby union coach Stuart Lancaster says Ireland's Brian O'Driscoll is the best centre he's ever seen ahead of the two sides' Six Nations clash on Saturday.

O'Driscoll will equal ex-Australia captain George Gregan's world record of 139 Test appearances by playing at Twickenham, by winning his 131st cap for Ireland in addition to eight for the British and Irish Lions.

Available to UK users only.