OLB Derek Rivers NFL Combine results (He is not 6-5)

Pre-draft measurables
Height: 6 ft 3 5⁄8 in
Weight: 248 lb
Arm length: 32 3⁄4 in
Hand size: 9 3⁄8 in
40-yard dash: 4.61 s
10-yard split: 1.60 s
20-yard split: 2.66 s
20-yard shuttle: 4.40 s
Three-cone drill: 6.94 s
Vertical jump: 35 in
Broad jump: 10 ft 3 in
Bench press: 30 reps

All values from NFL Combine
[en.wikipedia.org]