JD doesn't seem to have a number assigned yet. I would suggest 99. ?
Just a reminder what JD did at the combine. He finished first among edge rushers in the 60-yard shuttle (11.78 seconds), third in the three-cone drill (7 seconds), fifth in the 40 (4.6 seconds) and 11th in the 20-yard shuttle (4.44 seconds). He also placed second in the vertical jump (39 inches) and fifth in the broad jump (10 feet, 2 inches).
I hope Flores takes a special interest in JD since he is familiar with his position. Overall odd roster strategy in Miami, but maybe this is JD's chance.