San Francisco, New York and Indianapolis get excited ... Warren Moon tells TMZ Sports he believes the 49ers, Jets and Colts are the frontrunners to land Deshaun Watson!!!
The Texans QB officially wants out of Houston ... according to multiple reports, the 25-year-old is done with the team after feuding with execs, and has demanded a trade.
It's unclear if the Texans will give into the request -- considering, you know, the QB is awesome -- but if they do, Moon says he believes the Jets, Colts and 49ers are the most likely trade partners.