USC has successfully addressed one of its most pressing needs in this 2019 recruiting cycle, adding another highly-coveted cornerback to its commitment list.

Four-star prospect Max Williams, from Junipero Serra High School in Gardena, Calif., announced his commitment to the Trojans via a video posted to Twitter and YouTube on Saturday.

Williams, ranked the No. 11 cornerback in this class, joins five-star prospect Chris Steele (St. John Bosco/Bellflower, Calif.) -- the No. 2-ranked corner -- in giving USC two of the top recruits at perhaps the program's most pressing position of need, assuming the commitments hold.

USC also has a commitment from 3-star corner Trey Davis (Federal Way, Wash.).

Williams, who had his 2018 season end early with a torn ACL, said he was worried how recruiters would respond after that, but USC coach Clay Helton talked to him the day after Williams tweeted about the injury, reassuring him that the Trojans were still very interested.

In the end, that went a long way in securing his commitment.

"I feel close with the coaching staff. After my injury, they were the first school to contact me," Williams told TrojanSports.com shortly after his announcement. "... That was one of my biggest concerns. When they reached out to me and we talked and they said they still feel the same way about me and stuff like that, it took a lot of weight off my back."

The influx of talent at the position is greatly needed with the roster turnover that is set to come after this season.

The Trojans will lose senior starters Iman "Biggie" Marshall and Isaiah Langley at cornerback, along with nickel Ajene Harris and backup nickel Jonathan Lockett.

Freshman Olaijah Griffin and redshirt-freshman Greg Johnson, who has struggled this season and seen his role diminish, are next on the depth chart.

USC also has untested freshmen Isaac Taylor-Stuart and Chase Williams, though Williams moved to safety earlier this season to account for depth issues at that spot.

Max Williams, meanwhile, made his decision from a list of finalists that also included Notre Dame, Oregon, Louisville and Utah. He said he expects to compete to fill Harris' nickel role.

"They see me coming in being a nickelback because I'm quick, smart. They see me filling in for Ajene because he's actually a senior, and they've got five DBs leaving. I can play anywhere on the field. I just feel I'm going to fit in good," Williams said.

"I feel like I would be a really good nickel in college football because my quickness, I'm smart, my mental game, and nickel [against] the slot receivers is always quick receivers. I do a really good job guarding them. And at The Opening I was playing nickel, I was doing a really good job."

Williams said USC's academic profile was a key factor in his decision as well, as he plans to study business.

In regard to his recovery from the knee injury, Williams, who will enroll early this winter, expects to be able to do non-contact drills during spring practice and be "full-go" for fall camp.

"Recovery's doing really good. I"m actually more advanced than a usual ACL injury. I've been on crutches and my knee's getting stronger by the day," he said.

Steele, who has taken an active role in trying to get other recruits to follow him to USC, made his own pitch to Williams during this process.

"Yeah, I've been talking to Chris Steele. [He was saying] we could be one of the best duos in the Pac-12, probably the nation. We were talking also at The Opening and stuff, just talking about that duo," Williams said.

Now that his decision is made, Williams said he will "most likely not" take any official visits to other schools this fall.

He seemed to feel a sense of relief after making his announcement.

"The recruiting process is over now," Williams said. "I'm not talking to all the coaches, blowing my phone up and stuff like that, and I finally committed to a school now so I don't have to be stressed out anymore."

Williams' pledge gives USC 16 commitments in this recruiting class.