Gainous plays with a level of intensity and physicality that is hard for offenses to match for 48 minutes. He has an insanely high motor, relentlessly pursuing the football before leveling ball carriers on contact. Gainous strikes ball carriers with low pad level and never stops running his feet, forcing ball carriers to either come to a complete halt or be sent 1-2 yards backwards. His run fits are excellent as he is disciplined in reading his keys and scraping to the point of attack to meet running backs in the gap. On outside runs and perimeter screens, he has the speed to close on the runner, not allowing them any angles or openings to cut back into the middle of the field.

Gainous plays with a level of intensity and physicality that is hard for offenses to match for 48 minutes. He has an insanely high motor, relentlessly pursuing the football before leveling ball carriers on contact. Gainous strikes ball carriers with low pad level and never stops running his feet, forcing ball carriers to either come to a complete halt or be sent 1-2 yards backwards. His run fits are excellent as he is disciplined in reading his keys and scraping to the point of attack to meet running backs in the gap. On outside runs and perimeter screens, he has the speed to close on the runner, not allowing them any angles or openings to cut back into the middle of the field.