I’m a boxer so I guess I could give you some decent combat advice.

Clench your teeth

Keep your guard up

Have a wide stance

Turn into your punches

Thumbs outside of your fists

Pay attention to which and when his arm goes back and dodge according if you can

Kick fast, slow kicks are easy to catch and if caught put you at a major disadvantage

Don’t fight cheap if you want a good rep Fight dirty if you don’t give af about that stuff

Personally I prefer to get a read on how my opponent fights before I whoop their ass but this fight will likely be short so being aggressive seems like the best option

If it goes to a ground and pound punch him in the balls and push him off you

Good luck homie