Ketner, the brother of wide receiver Cooper Kupp, started in 13-of-33 games at both Kupp’s alma mater Eastern Washington University. As a senior captain at EWU, the younger Kupp posted 115 tackles, 5.5 tackles for loss, one interception returned 95 yards for a touchdown, and notched four passes defensed at linebacker. Ketner was a three-time member of the Big Sky All-Academic team.
Ketner and Cooper spent two years together at Eastern Washington in 2015 and 2016. In 2016, the brothers combined for a big game against Idaho State. Ketner, a sophomore, made six tackles and an interception in the win. On offense, Cooper caught 14 passes for 161 yards and two touchdowns.
The club waived wide receiver Justin Sumpter as a corresponding move, citing a non-football injury.