Pre-draft Abernathy was graded by NFL analyst
Lance Zierlein as a "priority free agent" prior to the draft, remarking that he had the requisite size, speed and athleticism across multiple secondary positions, but noted that he lacked awareness, instincts, and tackling ability expected.
Minnesota Vikings After going undrafted in the
2019 NFL draft, Abernathy signed as an undrafted free agent for the
Minnesota Vikings. Abernathy was released by the Vikings on July 24, 2019.
Tampa Bay Buccaneers On August 11, 2019, Abernathy signed with the
Tampa Bay Buccaneers. The Buccaneers waived Abernathy on August 14, 2019.
Indianapolis Colts On August 26, 2019, the
Indianapolis Colts signed Abernathy. He was released on August 31, 2019.
Dallas Renegades Abernathy played for the
Dallas Renegades of the
XFL during the 2020 season.
Houston Gamblers Abernathy played for the
Houston Gamblers of the
United States Football League during the 2022 season.
Green Bay Packers On August 10, 2022, the Green Bay Packers signed Abernathy following injuries to safeties
Darnell Savage,
Vernon Scott and
Dallin Leavitt. Abernathy played well in his first pre-season appearance against the
New Orleans Saints, recording an interception and a tackle for loss on a screen pass. He was named to the 53-man roster by the Packers on August 30, 2022, as the fifth safety on the depth chart. On August 31, 2022, he was released. He was signed to the
practice squad two days later. He was elevated from the practice squad to the active roster and made his NFL debut in week one of the regular season, playing on six special teams snaps in the 7–23 loss to the Vikings. On December 3, 2022, he was once again elevated for gameday.
Atlanta Falcons On December 31, 2022, Abernathy was signed by the
Atlanta Falcons off the Packers practice squad. He was waived on August 29, 2023, and re-signed to the practice squad. The Falcons signed him to their active roster on October 18, 2023. On October 15, 2024, the Falcons placed him on
injured reserve as he sustained a knee injury during the first quarter of their game against the
Carolina Panthers. ==NFL career statistics==