"'5-0," he told the Daily Mail. "But I'm not going to ever say anything else, am I? I might be being a bit tongue-in-cheek.
"Australia have not won a series in England since 2001. They will need to start well. They can't let England go 1-0 up with the way England are playing at the moment."
And, echoing comments made when he spoke to Mirror Sport in November, McGrath drew comparisons between the Australia side he played in and England's new 'Bazball' approach. "If you play without fear, it's amazing what you can achieve," he added.