UFC 285: Sports world reacts to Alexa Grasso's shocking defeat of Valentina Shevchenko

Jon Jones's return has been highly anticipated, but it was Alexa Grasso who shocked the world on Saturday night, submitting Valentina Shevchenko in the fourth round Saturday night, in the co-main event of UFC 285 in Las Vegas. Grasso was a major underdog entering the bout, but persevered through numerous takedown attempts and locked in the rear naked choke to force the champion to tap.

Grasso joins Brandon Moreno as Mexican champions, and both will watch as interim champ Yair Rodriguez gets his chance for the featherweight title later this year.

Fellow UFC fighters and other athletes and celebrities, sparking plenty of commentary across social media.

Holy cow!!! Congrats <a href=«https://twitter.com/AlexaGrasso?ref_src=» https:>@AlexaGrasso

<a href=«https://twitter.com/hashtag/UFC285?src=hash&ref_src=» https:>#UFC285

Another Mexican Champion

What I say vamos Mexico!!! Congrats <a href=«https://twitter.com/AlexaGrasso?ref_src=» https:>@AlexaGrasso

<a href=«https://twitter.com/ufc?ref_src=» https:>@ufc

Insane and new!!!<a href=«https://twitter.com/hashtag/Congrats?src=hash&ref_src=» https:>#Congrats

Man I don't even know what to say about that, freaking crazy.

What a win for Grasso! Crazy finish !

What a transition for Alexa Grasso to dethrone the Champ!