Liverpool greats and Sky Sports football pundits Jamie Carragher and Graeme Souness are the latest to take on the Punchbag Challenge.
In the run-up to Saturday's Sky Box Office clash between Floyd Mayweather and Manny Pacquiao, we have been offering sporting stars past and present, and a host of celebrities, the chance to show how hard they can punch.
Today's offering sees pundits Carragher and Souness test their strength.
Check out the attached video to see who came out on top.
Book Mayweather v Pacquiao, Sky Sports Box Office, May 2, via your Sky remote, phone or online now. If you want to record the event, book via your Sky remote. skysports.com/maypac