Ireland rugby great Brian O'Driscoll believes Sam Burgess' attacking game is below the standard required at international level and was more impressed by Henry Slade during England's victory over France last week.
Former South Sydney superstar Burgess and Slade forged a new-look centre partnership as they made their Test debuts at Twickenham last Saturday in their only opportunity to advance claims for inclusion in Stuart Lancaster's World Cup squad which will be named on August 31.
Lancaster has been tipped to select Burgess at the expense of Slade, whose intelligent passing helped set up two of the three tries in the 19-14 victory over France.
However, former British and Irish Lions captain O'Driscoll, who played inside and outside centre for Ireland in a glittering career, said it was Slade and not Burgess who caught his eye.
"Burgess has proper defensive X Factor, of that there's no doubt," O'Driscoll said on www.brianodriscoll.com.