I guess he just looked small.
This height talk reminds me of the one time I have seen a pro football player outside of the stadium.
I was in line, or really it was just a crowd, in the lobby to see a movie, and in that crowd was John Elway. This was still when he was playing, and he could not stand out more because he was head and shoulders taller than anyone else in the crowd. Nobody spoke to him, but eveyone had to have thought, "Hey, isn't that John Elway's head floating above the crowd"? "Why yes, it is his head floating over there".
The thing is, when he was playing, he wasn't bigger or taller than the other players, in fact he sometimes looked smaller. So that really gave me a surprise as to how big they really are.
Russell Wilson has one thing Manziel is lacking, something between his ears. It’s called a brain. No comparision at all in the quarterbacks. Wison is a man, Manziel is not. I would also suspect his correct height and weight is about 5-9 and 160 because that’s exactly what he looks like playing. No way he’s 6 ft tall. He has a small frame, little skinny legs. He’ll never make it as a quarterback in the NFL.