Bookmakers Betfair came up with a unique way to discover who is backing who in Froch-Groves II this weekend.
Betfair invited members of the public to punch the boxing machine with the face of the boxer that they want to lose the fight all around the country.
Outside Paddington station, Groves came out on top, 629 punched Froch – 331 punched Groves. But it was Froch fans who landed the biggest blows with eight of the 10 hardest punchers all choosing to land a haymaker on Groves.
The experiment threw up some surprising results, most notably with Froch's hometown Nottingham choosing to back Groves rather than the defending champion.
The London results showed a slight advantage for Froch overall, however, the rest of the country are backing Londoner Groves, despite Froch being the favourite with bookies.
Froch-Groves II takes place on Saturday night and is already the biggest British boxing fight ever, selling out 80,000 seats at Wembley. The attendance will set a new post-War record for a boxing event in Britain.