Luke Easterling of USA Today first reported the news, and Auburn Football honored its former player:
The Jacksonville Jaguars released a statement:
The Cleveland Browns and Oakland Raiders also offered their condolences:
Groves last appeared in an NFL regular-season game with the Tennessee Titans in 2014. He played 16 games at linebacker that season, registering 18 combined tackles and one sack.
The Greenville, Mississippi, native enjoyed a standout collegiate career at Auburn with 19 sacks and 28 tackles for loss in three seasons.
SEC Network analyst Cole Cubelic paid tribute to Groves on Twitter:
The Jaguars selected Groves with the 52nd overall pick in the second round of the 2008 NFL draft.
After struggling to find a full-time role with the team and recording just 2.5 sacks in two seasons, Groves was traded to the Raiders for a fifth-round pick.
Groves had his best season with the Arizona Cardinals in 2012, when he set career highs with 46 combined tackles and four sacks.
He joined the Buffalo Bills in 2015, but he was cut before the start of the regular season.
Prior to entering the NFL in 2008, Groves was diagnosed with Wolff-Parkinson-White syndrome, which causes a rapid heartbeat, according to MayoClinic.org.
NFL Network (h/t AL.com's Dennis Pillion) reported at the time that Groves underwent surgery to treat the issue.
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