Lopez-Salido II tonight on Showtime

Orlando Salido scored a shocking upset of Juan Manuel Lopez the last time the two fighters met. Tonight, on Showtime, Salido defends the WBO featherweight title he took from Lopez in the long-awaited rematch.

The match is one of a long line of great fights between champions from Mexico (Salido) and Puerto Rico (Lopez). Showtime analyst Steve Farhood sent out his 10 best fights between Mexican champs and Puerto Rican champs.

“Nothing stirs the passion of Hispanic fight fans like the 30-plus-year rivalry between the boxing greats of Mexico and Puerto Rico," said Farhood. "I’ve picked out 10 that I consider the best of the best.”

Listed in chronological order:

* Wilfredo Gomez KO 5 Carlos Zarate, Oct. 28, 1978, Hato Rey, Puerto Rico (Retains WBC super bantamweight title): In a shocker, undefeated and long-reigning bantamweight titlist Zarate, 52-0, struggles to make weight, then struggles further with Puerto Rico’s 21-year-old Gomez, 21-0-1. Zarate crashes to the canvas three times.

* Wilfred Benitez W 15 Carlos Palomino, Jan. 14, 1979, San Juan (Wins WBC welterweight title): Twenty-year-old Puerto Rican prodigy Benitez, 36-0-1, wins by split decision over established champion Palomino, 27-1-3. Benitez boxes brilliantly off the ropes.

* Giovanni Segura KO 8 Ivan Calderon, Aug. 28, 2010, Guaynabo, Puerto Rico (Retains WBA light flyweight title; Wins WBO light flyweight title): In a classic matchup of styles, Mexican bomber Segura, 24-1-1, issues Puerto Rican stylist Calderon, 34-0-1, his first defeat in a strong candidate for fight of the year.