As a junior, he tallied 67 tackles, 3 interceptions (2 returned for touchdowns) and 12 pass breakups, while contributing to the team winning the 5A state title.

He entered the transfer portal after being suspended from playing in the 2019 Fiesta Bowl for violating team rules, but later withdrew his name and participated in LSU's spring practices.

He played a lot against the Green Bay Packers, after Brown suffered a concussion and Jourdan Lewis was lost to injury in the previous contest.

He entered in the third quarter of the twelfth game against the Indianapolis Colts, in place of Brown who suffered a torn Achilles tendon, but Joseph allowed a touchdown catch.

In the thirteenth game against the Minnesota Vikings, he committed a pass interference penalty on his first play and left at halftime because he got sick.

In the NFC Divisional playoff round against the San Francisco 49ers, he forced Ray-Ray McCloud to fumble on a punt return early in the third quarter.

On August 29, 2023, the Cowboys traded Joseph to the Miami Dolphins in exchange for former first round draft choice Noah Igbinoghene.

[21] On February 11, the Kansas City Chiefs defeated the San Francisco 49ers in Super Bowl LVIII and Joseph earned a ring.

[31] In April 2022, Dallas police announced that they were seeking to speak with Joseph as a "person of interest" in their investigation of a fatal shooting that had occurred in March.

[32] Video footage of an altercation at a nightclub in the city's Lower Greenville neighborhood that preceded the murder showed that one of the men involved was wearing a "YKDV" necklace.

[33] In an interview with the Dallas Morning News on April 15, an attorney stated that Joseph was not the shooter but was a passenger in the vehicle from which the fatal shots were fired.

[34] A day after Joseph met with investigators, two men from his hometown of Baton Rouge were arrested in connection with the incident.