WBA, WBO, IBF, WBC middleweight champion Claressa Shields will pursue the biggest challenges out there in 2023.

Earlier this month, Shields picked up the biggest win of her career when he fought past amateur rival Savannah Marshall before sold-out crowd at the O2 Arena in London.

Marshall held a decision win over Shields from 2012, when the two were amateurs. That outcome was sole defeat on Shields' record as an amateur or pro.

In a fight 10 years in the making, Shields used her speed and skill to overcome Marshall's advantage in size and power.

"Some of the rounds were challenging because of her size. She switched the game plan up, she started trying to lay on me and make it ugly. That's when I had to change my game plan," Shields said to Sky Sports.

"Even when Marshall was trying to put the pressure on, I was still landing the bigger shots. I was digging to her body. I was pushing her back, I had her on the ropes and when you're against a power puncher like that, I wasn't supposed to do that, but if Marshall hit me with one hard shot, I came back and hit her with two or three."

In her third undisputed reign, Shields is looking ahead to bigger things in the coming future.

"I'm just taking the best challenges," Shields said. "I'm losing weight and I'm gaining weight. Really I'm at a disadvantage in a lot of my fights with these girls and if it's not height, it's their records. I've always had less fights than all the girls that I've competed against fighting for these world championship fights, and I've had less knockouts and less pro experience, but I was able to get in there and beat them," Shields said.

"I'm the most dominant, I'm the greatest woman of all time."