Philadelphia Eagles (first stint) Countess was selected by the Eagles in the sixth round, 196th overall, in the
2016 NFL draft. On September 3, 2016, he was released by the Eagles.
Los Angeles Rams (first stint) On September 6, 2016, Countess was signed to the
practice squad of the
Los Angeles Rams. He was promoted to the Rams' active roster on November 18. In Week 3 of the 2018 season, Countess returned two kicks for 51 yards and recovered a blocked punt for a touchdown in a 35–23 win over the
Los Angeles Chargers, earning him
NFC Special Teams Player of the Week. On March 12, 2019, the Rams tendered Countess as a restricted free agent. On May 2, the Rams waived Countess.
Philadelphia Eagles (second stint) On May 3, 2019, Countess was claimed off waivers by the
Philadelphia Eagles. He was waived by Philadelphia on August 13.
New York Jets On October 15, 2019, Countess was signed by the
New York Jets. On March 11, 2020, Countess was released by the Jets.
Philadelphia Eagles (third stint) On December 16, 2020, Countess was signed to the
Philadelphia Eagles' practice squad. He was elevated to the active roster on December 19 and January 2, 2021, for the team's Weeks 15 and 17 games against the
Arizona Cardinals and
Washington Football Team, and reverted to the practice squad after each game. He signed a reserve/future contract with the Eagles on January 4, and was released on March 9. On August 9, 2021, Countess re-signed with the Eagles. He was placed on
injured reserve on August 31. Countess was released by the Eagles on September 9.
Baltimore Ravens On December 1, 2021, Countess was signed to the
Baltimore Ravens' practice squad. He was released on December 28.
Los Angeles Rams (second stint) Countess signed to the Los Angeles Rams' practice squad on January 12, 2022. Countess was elevated to the active roster and won
Super Bowl LVI when the Rams defeated the
Cincinnati Bengals.
New Jersey Generals On January 26, 2023, Countess signed with the
New Jersey Generals of the
United States Football League (USFL). He was placed on the team's injured reserve list on April 19. Countess was placed on the retired list on October 4. ==NFL career statistics==