In the early hours of Saturday morning, Britain’s Anthony Crolla takes on three-weight champion Vasyl Lomachenko for the WBA (Super), WBOand The Ring lightweight titles. The fight in Vegas sees Crolla, a former world champion himself, take on the man that the majority of boxing fans and pundits believe is the best pound-for-pound fighter in the world. Whilst Mancunian Crolla is no mug, a win over Lomachenko will be classed as a huge, huge upset, one of the biggest in the recent history of boxing. Ahead of the fight, we’ve taken a look at some other monumental sporting upsets. Will Crolla be added to this list by the time the weekend is over?