Jermell Charlo vs. Brian Castano fight prediction, card, odds, start time, how to watch, preview

A four-belt undisputed champion will be crowned in the 154-pound division on Saturday night in San Antonio

Aside from the obvious huge stakes at play when Jermell Charlo and Brian Castaño meet on Saturday to crown the first undisputed champion of the four-belt era at junior middleweight, the best part of this 154-pound duel is the contrasts of styles.   Charlo (34-1, 18 KOs), a 31-year-old native of Houston, is a dangerous counterpuncher with the perfect balance of speed and power. Yet he'll be defending his WBA, WBC and IBF titles this weekend at the AT&T Center in San Antonio (Showtime, 9 p.m. ET) against a completely different animal in Castaño (17-0-1, 12 KOs), the 31-year-old WBO champion from Argentina who never takes a step backward. It's the expectation of fireworks between the two champions that is most appealing, not to mention that either fighter just might possess the exact style capable of becoming Kryptonite to their opponent.