Bubba Watson: I Love Donald Trump ... Here's Why!

Donald Trump has another major athlete supporter -- golf superstar Bubba Watson -- who tells TMZ Sports, "I love that man!"

This clip is pretty great ... we ran into Watson on the streets of NYC while he was in the middle of a Facebook Live session -- and he was all about streaming our interaction to his followers!

We talked about his new jetpack, he made our guy cover the Nike logo on his shirt ... and then he explained why he's all about The Donald.

It's definitely not an official endorsement ... but it'll definitely make Trump happy.