I'm just saying I've met Alex twice and he's not a big guy. He's very much not a big guy. Put him up against Joe on the Street and he's a little more buff, but he's no bigger. He's tiny for most football players.
I will also mention that it's possible that his listing isn't entirely accurate. I'm 6'3" and he was not looking me eye-to-eye.
But as I said before, nobody really should care how "big" Alex is. If he's got the skill to play that's all that counts. Muggsy Bogues was "too small" to play organized basketball, but he had a 14-year career in the NBA. Size matters not.