By Chris Williams: Top Rank promoter Bob Arum, who handles Manny Pacquiao, thinks that undefeated star Floyd Mayweather Jr. (42-0, 26 KO’s) will choose to fight former two division world champion Robert Guerrero (29-1-1, 18 KO’s) next instead of a more popular fighter, and Arum sees a Mayweather-Guerrero fight doing poorly in terms of making money, according to an interview at Philstar.com.