The Saskatchewan Roughriders signed wide receiver Siaosi Mariner to the practice squad on Tuesday.
Siaosi Mariner is six foot two and weighs 190 pounds. The 28-year-old from Tustin, California, re-signed with the Michigan Panthers on August 13, 2024. In 2025, Mariner made 31 catches for 527 yards and one touchdown in 10 games. His 527 receiving yards led the UFL. In the playoffs, he made six catches for 108 yards and one touchdown.
Mariner signed with the Las Vegas Raiders as an undrafted free agent on May 7, 2020. He also spent time with the Baltimore Ravens. The Ottawa Redblacks signed Mariner on January 21, 2022. In 2022, Mariner made eight catches for 98 yards and one touchdown in three games.
In 2023, he made 18 catches for 219 yards and one touchdown in 13 games. He became a free agent after the 2023 season. The Michigan Panthers signed Mariner on April 4, 2024. In 2024, Mariner made 27 catches for 346 yards and two touchdowns in seven games.
Collegiately, Mariner played three seasons at Utah (2016-18) with 52 catches for 785 yards and four touchdowns in 36 games for the Utes.
Then, he transferred to Utah State in 2019 with 63 catches for 987 yards, 10 touchdowns, and three tackles (3 solos) in 13 games for the Aggies. In the 2019 Tropical Smoothie Cafe Frisco Bowl, Mariner caught two touchdowns against Kent State.
