Mediatakeout reported a while ago that Drake was punched in the face by Wayne but didn’t have a specific reason why the altercation took place. They think it’s because of this:

“Details as to what CAUSED the beef is coming to light.A Young Money insider explained, “[Lil Wayne] just feels that Drake is very disrespectful. Like he doesn’t pay enough homage to Wezzy for putting him on.”

And the insider dropped a BOMBHELL. They explained, “For example, when Wayne was locked up Drake started [sleeping with] Shanell. Now everyone knows that’s Wayne’s girl. [Lil Wayne] is not jealous over her or anything, but he thinks that was just disrespectful.”