What is tomato can in boxing?

In boxing, kickboxing or mixed Martial Arts, "tomato can" or simply "tomato" or "can" is an idiom for a fighter with poor or diminished skills (at least when compared with the opponent they are placed against) who may be considered an easy opponent to defeat, or a "guaranteed win." Fights with "tomato cans" can be arranged to inflate the win total of a professional fighter.