Britain's Kavanagh stuns ex-champion Moreno with three weeks' preparation

The weekend saw a string of unexpected victories in various sports, as underdogs rose to the challenge and claimed surprise wins. In the world of mixed martial arts, Britain's Lone'er Kavanagh stunned former UFC flyweight champion Brandon Moreno in Mexico City. The unranked Kavanagh, who took the fight on just three weeks' notice, delivered a mature display to win by unanimous decision 49-46, 48-47, and 48-47.

Kavanagh's victory will see him take a big leap towards the top end of the division, and the 26-year-old was ecstatic about the win. "I said before this fight - I live for legendary moments," he said. "This is a legendary moment. Brandon is a legend. Two-time world champ. I'm a big fan. I watched him when I was a kid. To get to fight him is amazing."

Meanwhile, in the world of rugby, Maika Sivo's four-try display helped Leeds Rhinos thrash Hull KR 58-6 in Las Vegas. The Fijian winger crossed twice and created a third try as the rampant Rhinos led 28-0 at half-time. Sivo's performance was all the more impressive given that he missed the whole of last season with injury after joining Leeds Rhinos.

In boxing, Mexico's Emanuel Navarrete stopped compatriot Eduardo Nunez in a dominant display to unify the IBF and WBO super-featherweight titles. Navarrete, 31, added the IBF title to his WBO crown when the ringside doctor stopped the action before the 11th round. The victory was the 40th of Navarrete's 43-fight career, while Nunez's 19-bout win streak came to an end.

However, not all teams were celebrating this weekend. Newcastle United suffered a disappointing 3-2 loss to Everton in the Premier League, a defeat that felt like a huge step backwards for the team. Newcastle head coach Eddie Howe admitted that the loss felt like deja vu, given the manner of his side's 3-2 loss against Brentford at St James' Park only a few weeks ago.

In other sports news, Hilary Knight, along with U.S. women's hockey teammate Megan Keller and men's team brothers Jack and Quinn Hughes, appeared on "Saturday Night Live" and quipped, "It was going to be just us, but we thought we'd invite the guys, too."

The weekend's upsets serve as a reminder that in sports, anything can happen, and that underdogs can often rise to the challenge and claim surprise victories. As Kavanagh's win over Moreno showed, even the most unlikely of fighters can achieve greatness with determination and hard work.