Complex sentence: However, in a rematch a few weeks later, McLarnin beat Ross by a decision, recovering the title, and after that, Ross went back down to the junior welterweights and reclaimed his title, with a 12 round decision over Bobby Pacho.
Split into simpler sentences: However, in a rematch a few weeks later, McLarnin beat Ross by a decision and recovered the title. After that, Ross went back down to junior welterweight and reclaimed his title with a 12 round decision over Bobby Pacho.