Overton, 33, originally signed on with the Seahawks as an undrafted free agent out of Western Washington back in 2010. He spent a few months in Seattle before catching on with the Colts in 2012.
The Jaguars signed Overton to a contract last year after Tinker suffered torn right ACL. However, Overton wound up being placed on injured reserve in November.
In 2017, Overton appeared in nine games for the Jaguars.