Keith Thurman knows what it takes to beat Danny Garcia and Shawn Porter.

The undefeated WBA Super World Welterweight Champion came out on top against both men in a pair of thrillers.

‘One Time’ took a close but unanimous decision against Porter in June 2016 and in March 2017 beat Garcia on a split decision, but hasn’t boxed since due to injury.

Thurman has broken down Saturday’s BoxNation blockbuster between his big rivals, a fight he calls, "one of the best match-ups of the year".

Here is Thurman’s analysis of the super showdown:

PUNCHING POWER: Edge GARCIA

"Danny can punch with both hands. He does load up, so you can't be right there in front of him."

PHYSICAL STRENGTH: Edge PORTER

"Shawn is clearly the more physical fighter."

DEFENCE: Edge GARCIA

"Porter's defence is his offence. With Danny, I've never seen anyone so willing to just stare at me without throwing a punch. He's committed to being second, a pure counter-puncher."

SPEED: Edge PORTER

"Shawn is faster and a little more athletic. He'll triple on the jab to get inside and use stutter-steps. Danny's real relaxed, but that doesn't necessarily come through in his hand speed."

BOXING ABILITY: Edge GARCIA

"Neither one is known for boxing. Danny's a counter-puncher, and Shawn outworks you. Danny has nice boxing movement when he wants to be evasive. He's underrated when on his back foot. We saw that against Lucas Matthysse and Brandon Rios."

RING IQ: EVEN

"Hard to judge. These are two World Champions with tremendous amateur pedigrees."

CHIN: EVEN

"In my fights, Porter took more big punches than Garcia did. I had to hit hard to keep Porter off me. They both have enough power to hurt each other."

Prediction

"This is one of the best match-ups of the year. I try not to overthink it. It's Porter by decision or Garcia only by KO. I lean toward Porter."