Drake's wallet will be a whole lot fatter if Logan Paul eviscerates Dillon Danis on Saturday ... 'cause the rapper just placed a massive, $850,000 bet on the WWE superstar to score a knockout victory!!!
The "God's Plan" crooner put down the money on The Maverick on Thursday ... revealing he'll get back $1.35 MILLION if Paul comes through.
Drake said he's backing Paul because of all of the trolling Danis has done in the leadup to their much-anticipated boxing match -- which has included a slew of digs at Paul's fiancée, Nina Agdal.