NEW YORK — Charles Conwell Jr., who was the middleweight representative on the 2016 United States Olympic boxing team, was one and done at the Rio de Janeiro Games but never thought about remaining an amateur and going for a medal in 2020.

Conwell, a 19-year-old from Cleveland, instead has his eyes on professional glory.

Conwell, who signed a management deal with David McWater’s Split T Management in early December, signed a co-promotional deal with Lou DiBella and Tony Holden on Saturday night at Barclays Center in Brooklyn, where he and McWater attended the Keith Thurman-Danny Garcia welterweight world title unification fight that DiBella promoted.

“I just had no more desire to fight again in the Olympics,” Conwell told ESPN. “It was a good experience but it was a one-time thing. I am ready to fight professionally.”

Conwell, who boxed at 165 pounds in the amateur ranks, told ESPN that he plans to fight as a 154-pound junior middleweight as a pro.

“It’s going to be smooth. There will be no problems at all,” Conwell said of dropping down 11 pounds.

DiBella said Conwell’s pro debut likely will take place on April 21 at Buffalo Run Casino & Resort in Miami, Oklahoma, where Holden runs regular cards.

“I had Conwell on top of my list of American Olympians I was interested in signing,” DiBella said. “I thought he was one of the top two American Olympians with [silver medalist] Shakur Stevenson. I also felt that Charles was the best fit for my company. He’s tremendously poised in the ring for his age, he has great amateur experience, he can punch, he can move, he’s multidimensional. He’s one of those rare talents.

“I had hoped from the beginning I could do a deal with him. It took some patience. I work with other kids Dave manages. He’s a good manager and we can work well together.”

In the Olympics, Conwell was eliminated in his opening round bout via unanimous decision by two-time Olympian Vikas Krishan of India.

Conwell, who favors his left hook to the body, was introduced to boxing — along with his brothers and sisters — by his father and trainer Charles Conwell Sr. when he was 10. As an amateur, Conwell compiled a record of approximately 132-14, including winning a gold medal at the 2015 National Golden Gloves and the 2016 U.S. Olympic trials. He was named USA Boxing’s 2015 youth male athlete of the year.

As a pro, Conwell said, “I want to be a multi-world champion and a legend in the sport of boxing. I’m looking forward to getting on a bigger stage and going some more rounds. I’m looking forward to the whole spectrum of pro boxing.”

Along with Conwell, DiBella and Holden also signed 20-year-old super middleweight Isaiah Steen (6-0, 5 KOs), of Cleveland, who is Conwell’s half brother, and junior middleweight Ardreal Holmes (5-0, 3 KOs), 22, of Flint, Michigan. They are also with Split T Management.

DiBella said he and Holden plan on keeping Conwell, Steen and Holmes active.

“We have casinos in Oklahoma interested in these kids,” DiBella said. “I want to keep them busy, expose them in New York, in Cleveland, in Michigan, but we want to also do for them what Tony did for Ivan Baranchyk.”

Holden and DiBella have regularly put Baranchyk (15-0, 10 KOs), a Russian junior welterweight prospect, on cards at Buffalo Run and he has become a major attraction there and developed a wild fan base.

“When I saw what Tony did for Baranchyk in creating a home base for him in Oklahoma I think it’s a great opportunity to develop a fighter like Charles the same way,” DiBella said. “We can have him fight in major markets but also find him a fan base there. I’m going to keep this kid busy and I’m not going to rush him because he’s a kid. He doesn’t have all his strength yet. You have to develop the kid properly.”

Conwell said he is ready to go and happy to be with DiBella and Holden.

“It was the best offer that came to us and I felt like those were the people who were most interested in me and my career,” Conwell said. “I also want to expand my fan base all over the country, so their plan to have me fighting all over, including showcasing me in Oklahoma, is a good one. I’m looking forward to it.”