Roberson. Head coach Jeff Fisher named Joyner the fourth cornerback on the Rams' depth chart to begin the regular season, behind Trumaine Johnson, E. J. Gaines, and Coty Sensabaugh. On October 16, 2016, Joyner recorded a season-high ten combined tackles (eight solo) and deflected a pass during a 31–28 loss at the Detroit Lions. In Week 4, he made four solo tackles, deflected a pass, and sacked quarterback Ryan Tannehill in the Rams' 14–10 loss to the Miami Dolphins. On December 12, 2016, it was reported that Rams' general manager Les Snead fired head coach Jeff Fisher after the Rams fell to a 4–9 record. Special teams coordinator John Fassel was named the interim head coach for the last three games of the regular season. He finished the season with 66 combined tackles (50 solo), five pass deflections, and a sack in 14 games and eight starts. 2017 During organized team activities, defensive coordinator Wade Phillips decided to have Joyner work out at free safety. On April 17, 2017, it was reported that Joyner would remain at free safety heading into training camp. He competed for the starting free safety job against Cody Davis and John Johnson. Head coach Sean McVay officially named Joyner the starting free safety, alongside strong safety Maurice Alexander, to begin the regular season. He started the Los Angeles Rams' season-opener against the Indianapolis Colts and recorded four solo tackles, two pass deflections, and returned an interception by Scott Tolzien for a 29-yard touchdown in the fourth quarter of their 46–9 victory. It marked Joyner's first career touchdown in his four-year career. The following week, Joyner recorded a season-high nine combined tackles during a 27–20 loss to the Washington Redskins. He was sidelined for three consecutive games (Weeks 4–6) after sustaining a hamstring injury. On December 3, 2017, he made a season-high three pass deflections, five combined tackles, and returned an interception by Carson Palmer in the Rams' 32–16 victory at the Arizona Cardinals in Week 13. Joyner was inactive for the Rams' Week 17 loss to the San Francisco 49ers, due to the decision by head coach Sean McVay to rest him for the playoffs. He finished his first season as the starting free safety with 49 combined tackles (39 solo), nine pass deflections, three interceptions, a forced fumble, and a touchdown in 12 games and 12 starts. Pro Football Focus gave Joyner an overall