NFL Profile
The link above gives him an NFL comparison of Greg Olsen, which it might be a little to early to do.
The Browns didn't release Gary Barnidge to have Njoku play a limited role. He's only 20 years old and measures like 6'5" 240lbs. He was recruited to Miami originally as a WR, a former National High Jump champion, and had a 37.5" vertical at the combine and a 6.97 Three Cone. He has every single tool to be a matchup nightmare and he has been doing nothing but impressing at camp so far. Oh and as I mentioned before he is only 20!
I still get a kick out of him thinking Joe Thomas was a coach when he first met him.