After signing as an undrafted free agent with the Baltimore Ravens, Williams went on to join the Los Angeles Rams, where he won a championship with the team during Super Bowl LVI.

He then enrolled at the University of Alabama at Birmingham (UAB) for the spring semester and originally was turned down after a tryout to join the football team as a walk-on.

[1] Over the course of two seasons with the Blazers, Williams played in 25 games (18 starts), recording 73 tackles, 26 passes defenced and 6 interceptions (two returned for a touchdown).

[6] Head coach John Harbaugh named Williams the seventh backup cornerback on the depth chart to start his rookie season, behind Brandon Carr, Jimmy Smith, Marlon Humphrey, Anthony Averett, Maurice Canady, and Tavon Young.

[10] Head coach Sean McVay named Williams the sixth cornerback on the depth chart, behind Marcus Peters, Sam Shields, Nickell Robey-Coleman, Troy Hill, and Dominique Hatfield.

[14] Williams played in 14 games during the 2019 season, starting three and finishing the year with 15 tackles, four passes defended, two interceptions and a fumble recovery for a touchdown.

[16] In Week 4 against the New York Giants, Williams recorded an interception off a pass thrown by Daniel Jones late in the fourth quarter to secure a 17–9 Rams’ win.

[18] In the Wild Card Round of the playoffs against the Seattle Seahawks, Williams intercepted another pass thrown by Russell Wilson and returned it for a 42-yard touchdown during the 30–20 win.