Shirley, 24, originally signed on with the Raiders as an undrafted free agent out of UNLV back in May. However, he was among the Raiders’ final roster cuts at the start of the season.
Shirley later signed to the Raiders’ practice squad before joining the Buccaneers back in October. Tampa Bay later elected to cut him loose in December, but he wound up signing to the Raiders’ practice squad a few days later.
The Seahawks signed him to a future/reserve contract in January but unfortunately waived him a few weeks after this year’s draft. The Seahawks brought him back for a brief period before later cutting him loose.
In 2015, Shirley appeared in five games and recorded two tackles.
Sulleyman, 23, wound up going undrafted out of Portland State back in May before signing a three-year, $1.62 million contract with the Broncos a few days later. Unfortunately, the Broncos elected to waive Sulleyman at the start of the season as they cut their roster down to 53 players.
Sulleyman previously tried out for the Chiefs and Bengals coming out of the preseason but neither team signed him to a contract.
During his college career at Portland State, Sulleyman recorded 97 tackles, 27 tackles for a loss, two forced fumbles, one recovery and 12 sacks over the course of 34 games.