Spruill, 24, has three years remaining on his four-year, $2,391,480 rookie contract and stands to make base salaries of $435,000, $600,000, and $690,000 over the next three years.
Spruill unfortunately was placed on season-ending injured reserve last August after he sustained an ACL tear.
He has yet to appear in an NFL game.
Harris originally signed on with the Philadelphia Eagles as an undrafted free agent out of Texas back in May. During his senior season, Harris caught 68 passes for 1,051 yards, and seven touchdowns.