They pretty much did this in real life, though: One loses to Corrie Sanders, the other one does the run-in to avenge it; one loses to Chris Byrd, the other does a sneak attack to take him out. Rinse, repeat.
Or Nicolino Locche and Willie Pep. Only problem is they’d keep missing each other every time the other tried to tag in.
Hagler & Hearns would be a deadly team too. Hagler, the Hard Tough BoxFighter and Hearns, the Tall Rangy Boxer/Puncher, a Manager's Top Team.