Fake Ivan Drago tried to pick a fight with Justin Bieber in front of Craig's last night -- showing up to the restaurant in FULL BOXING GEAR ... and we got the whole thing on video!!!
The wannabe Russian was SERIOUS about trying to fight Justin -- he's the same guy who showed up to Logan Paul's home a few weeks ago to challenge the YouTube star to a fight.
Remember, Logan actually AGREED and the two threw down right in Paul's back yard.