That's called aïkido
If you aren't trained forget about it and try to avoid any fight, especially against a wrestler.
BUT from my little experience as a former MMA fighter, since it will be a street fight ig? and he's most likely gonna try to put you on the ground by a double legs takedown (if it's his strategy, could be just strikes idk so keep your arms close to the face), keep your chin close to your sternum to avoid knocking the back of your head during a takedown. You probably CAN'T stop the takedown, so try to caught him into a guillotine choke asap and lock hard, never let his neck go. If you can't use and abuse the 12to6 elbow strikes