Im going to imagine myself as a pacman fan for a moment. If Pacman were to beat Rios in an impressive fashion, i'd want him to continue insulting Marquez like he's been doing recently, talking about Marquez' lucky punch etc and irritate him enough to want a 5th bout..

It's not as if Marquez was dominating the fight anyways prior to the KO so even as Marquez' die hard fan, I believe 5th fight is dangerous where pacman has a great chance of winning, assuming the KO didnt affect him much..

ONly other option he has is the winner of Alvarado-Provodnikov since Garcia and Mythesse are with GBP..

He really doesn't have much option unless he wants to go under Mayweather Promotion to get a shot. lol