What's cooler than having the BEST knockdown of the week??
How about getting props from Odell Beckham after the fight?
That's what happened to Lorenzo "Truck" Simpson -- who floored his opponent with a crushing left hook during his nationally televised fight on FS1 this weekend ... making just about every single highlight reel.
Lorenzo Simpson sends Jaime Meza to the canvas with a vicious left in the 1RD! #SimpsonMeza pic.twitter.com/WCZabwe2oc
Simpson -- one of Floyd Mayweather's prodigies -- was fighting Jaime Meza on Sunday ... and when Mezza threw a stupid, wild spinning punch, Truck timed it perfectly and smashed the dude's face in.
"I caught him real good," Simpson told TMZ Sports with a victorious grin on his face ... "I knew I caught him with a nice shot."
After the fight, Simpson got all sorts of love from big stars including boxing champ Caleb Plant, Gervonta Davis and NFL superstar Odell Beckham Jr. ... who's also a big fight fan.
"It's going nuts right now," Simpson said.
Keep your eye on this dude -- Simpson is 3-0 as a pro ... but he's got BIG power and is on track to be a future superstar in the sport.
In the meantime, watch the knockdown again ... it's good stuff.