Annen is graded as a later-round draft target, but has intriguing athleticism.
Annen ran the 40-yard dash in 4.41 seconds and bench pressed 225 pounds 25 times with a 34-inch vertical leap and a 10-foot broad jump at his campus Pro Day workout.
The 6-foot-4, 247-pounder caught 15 passes for 177 yards and two touchdowns last season and was named all-conference.
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Aaron Wilson covers the Ravens for The Baltimore Sun