I used to like to cover up, tight guard basically putting earmuffs on. Let my opponent waste energy hitting arms and gloves. Then hit him with clean hard counter shots to body, especially the liver and the sternum.

No better way to slow a pressure fighter down, and especially after they've just finished throwing a combination or ETC. They will soon slow up from that. And also make sure your breathing properly and you'll always relaxed.

Yes boxing and using your jab is the key, and also make sure your giving him angles. And learn to turn your opponent, when he gets you on the ropes.

And the most important thing is counters, use your opponents aggression against them. Especially when he closes the distance, and your on the inside with your opponent, as i said above body shots are the key.

And lastly make sure you tie up your opponent on the inside, not allowing him to work. A good example of this is Holyfield vs Tyson 1.