Watching Hammad on tape, which you can do too here on GoPokes.com and Scout.com on Hammad's profile page, he is a very powerful blocker that once he gets tied up with a defender either takes them a distance or leaves them on the ground.
His fundamentals in locking on to a defender are very good, and for a big man he has good feet, moves them constantly and well. Scout.com's Greg Powers has done a good job of keeping up with Hammad and will likely have more on his visit too.
Hammad has scholarship offers from Arizona, Arizona State, Arkansas, Baylor, Colorado, Houston, Illinois, Iowa State, Kansas, Minnesota, Mississippi and Texas Tech among others.
Hammad told us he would get in touch with us to let us know how his unofficial visit to Oklahoma State goes.