Stevenson, 28, from Newark, New Jersey, has won world titles in three weight classes over 23 professional fights. He's got a big fight coming up against William Zepeda on Saturday, July 12 at Louis Armstrong Stadium in New York City.
But Stevenson's already thinking about what's next. In an interview with Fight Hub TV, he called out Lopez:
"I'm a little guy so I'm chilling at 135 but I would love to fight Teo. I think Teo talks a lot of s--t and he think's he's that good so I would love to get in the ring with Teo."
Lopez, 27, successfully defended his WBO super-lightweight title against Arnold Barboza Jr on May 2 in Times Square, New York City. He was in talks to fight Devin Haney next, but those discussions fell through last month.
Stevenson's challenge to Lopez shows how fighters often move up in weight classes for new challenges. It's common in boxing for champions from different organizations to fight and unify titles.
For now, Stevenson's focused on his upcoming lightweight title defense. But if he wins, we might see him jump up a weight class to take on Lopez in a champion vs champion showdown.