Seattle is clearly in the market for offensive line upgrades.
Sowell, 26, wound up signing on with the Buccaneers as an undrafted free agent out of Mississippi back in 2012. He lasted just a year in Tampa Bay before he was later signed off of their practice squad by the Colts.
Indianapolis placed him on waivers at the start of the 2013 season and he was later claimed by the Cardinals. Arizona elected to bring him back on a one-year deal last year.
In 2015, Sowell was active for all 16 games for the Cardinals, but played just 3s snaps.