Two-year starting safety lacking desired height and length but carrying a compact, muscular frame for the rigors of the position. Mustapha will be in consideration as a down safety who can help support against the run and handle short and intermediate zone coverages. He's not overly instinctive, but he does play with a good burst on throws and well-timed challenges. He struggles against bigger targets and might not be the best option to handle single- or two-high safety looks. There are occasional mistakes made with aggressive downhill angles to ball-carriers, but he's generally in position and maintains tackle-ready posture when the time comes. He projects as an average backup but does possess some quality play traits.