Recently I had a really tough spar with a multi national champion.
This is what I learnt
1. Establish your jab
What I learnt , as soon as I let him establish his jab before mine I gave him the opportunities to take advantages.
2. Invest in the body early
Getting hit with body shots earl will slow anyone right down
3. 3S AND 4S this is amateurs single shots all the time wont win you the round throw 3s and 4s and remember to be ready for the second phase