'Very Sad' Over Tiger Woods Crash

When Canelo Alvarez isn't knocking people out, he's OBSESSED with golf -- especially Tiger Woods -- which is why he's pulling like crazy for Tiger to recover from his injuries.

"Very sad to hear what happened," Canelo tells TMZ Sports ... "I hope everything comes out okay."

Canelo says he's been following Tiger since Woods first won The Masters in 1997 -- despite the fact Canelo was only 7 years old at the time! Alvarez has been an avid golfer ever since.

"He's so good. He's the best," Canelo added ... "I hope that he has good health and one of my dreams is to play with him."

Of course, Canelo won't be on the links this week -- he's gearing up for a big fight Saturday night on DAZN against "The…