Win the Burger King event in Career mode. Then at the trainer selection screen, press Down until the Burger King appears as a choice. He gives you Heart when you fight.

Use you're head; don't try to hit you're opponents head when he'll just jab, and counter you

Make a created character; with maxed out stats, for fun, u'll have an unstoppable dude

Counter and parry when you can; don't let you're opponenet hit you and Knock you Out

When you're stamina meter is flashing;
Let rip!, you have unlimited stamina for a limited amount of time

When you're opponents stamina meter is flashing;
Watch out!, they can rip you apart, block like hell, get out of there zone, and stay away

Train the right area's in career mode;
Dont train you're strength I real high- train an area that needs work,
(being real strong,is great but when you throw one punch and collapse-because you're stamina level is too low isn't)

Fight you're best; don't throw punchs that you know wont hit, it wears you down,
Ur opponent will take advantage , judges will take it awat from you're score

Dirty moves; if you want fight dirty, or get that edge- get that dirty punch in,
but don't get caught- there are consequences

Take these tips, and u'll be a unstoppable fighting machine!

When fighting a right handed boxer change your stance to south paw and deliver left haymakers and left hooks (it is hard to see the left hand coming)

Parry everything that comes at you, but you will need a lot of speed for this. After you parry your opponents punch use you boxers signature punch to get a strong shot in. After you constantly do this the ref will either stop the fight because after the parry he is left open or he will be knocked out.