The Saskatchewan Roughriders have signed American receiver Siaosi Mariner.
The six-foot-two, 190-pound Mariner had been playing with the Michigan Panthers of the UFL in 2025, where he led the league in receiving yards with 527.
Prior to his time with Michigan, he signed with the Ottawa REDBLACKS in 2022. During his most recent CFL season, he started in nine games and recorded 18 receptions for 219 yards and one touchdown.
Mariner also played in the NFL, signing with the Las Vegas Raiders in 2020 and the Baltimore Ravens in 2021.
Before turning pro, Mariner had a standout senior season at Utah State, recording 63 receptions for 987 yards and 10 touchdowns in 13 games in 2019 and earning Second-Team All-Mountain West Conference honours.
