Soulja Boy -- Yes Way Jose ... I'll Fund Canseco's Poker Career

Jose Canseco might've just hit the jackpot ... 'cause hip hop superstar Soulja Boy tells TMZ Sports he's willing to drop some major cash to fund Canseco's poker obsession.

Soulja was hitting the clubs in L.A. when he started yapping to our guy about a new venture called the World Poker Fund ... where celebrities find average Joes to stake in high limit poker events.

So we had to ask ... would Soulja be down to put a little of that hip hop money behind former Major League Baseball star Jose Canseco ... who's been competing in big money tourneys for years and recently launched his own campaign to find financial backers to stake him.

Check out the clip -- Soulja says he's willing to go all in with Canseco ... promising that he's actually willing to inject some green into the former bash brother.

Make it rain ...