[1] After winning the first 13 fights of his career all in his native Dominican Republic, De Los Santos made his U. S. debut at T-Mobile Arena in Las Vegas, Nevada.
Taking no time to level up in competition, he challenged Todd Liebman (24-0), an undefeated Champion who'd been on a 12-fight KO streak across multiple promotions.
Despite starting off strong Foster turned the fight around and hurt De Los Santos in the final round.
[3] After Devin Haney announced he was vacating his belts, De Los Santos faced 2 weight world champion Shakur Stevenson.
In what was a pretty dull fight Stevenson became a 3 weight world champion by winning a unanimous points decision.