At 6-foot-6 and 301 pounds, Boyko spent the entire 2015 season on the Philadelphia Eagles’ practice squad after joining the team as an undrafted rookie.
The UNLV product was a two-time second-team All-Mountain West pick. Boyko will wear No. 67 for the Chargers.
San Diego now has 17 offensive linemen on the 90-man roster. To make room for Boyko, the Chargers waived tackle Zeth Ramsay.