Tim Tebow is the most obvious closet case of any celebrity. Not that there's anything wrong with that.
Tim Tebow is gay?
The entire time he was in Florida/Denver/NYC, he's never once been romantically linked to anyone, never been seen on a date with anyone. That's when literally thousands of women would have at least gone out with him. If he wants to stay a virgin, fine, but no good-looking super-succesful millionaire celebrity heterosexual man is going to refuse to ever date anyone at all.
If so inclined, he could have been hundreds of potential women at church. Maybe he's asexual and not gay, but there ought to be some shred of evidence that he's straight if he is.