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Yet another fairly slow week at the top of the sport, but some out-of-ring shakeups did occur. This weekend doesn't have a lot of ranked action, either, but after that the guns are blazing with big fights pretty much every weekend until the Christmas season sets in.

Lightweight

Robert Guerrero was headed out of the rankings here after August 27 anyway, whether he won or lost in his new division. But with an injury putting him on the shelf, I'm just taking him out now. He's basically just taking up a place in a division that he won't even be participating in if I leave him. When he comes back, he'll come back as a junior welterweight. In his place at No. 10 is Vicente Escobedo. This division is losing talent left and right, as Humberto Soto officially moves to 140 on September 3, and you can argue that Ring Magazine champ Juan Manuel Marquez really shouldn't be ranked here anymore either, and I have argued that with myself plenty, but he's a case I think depends on what he does after the Pacquiao fight. If he wins, obviously he'll be staying at "welterweight' to fight Pacquiao again, and if he loses, he may just return to lightweight and defend his crown a couple more times.

Super Flyweight

This morning we recapped Suriyan Sor Rungvisai's win over Tomas Rojas, and that has obviously affected the rings, as has Cristian Mijares surrendering his IBF belt due to inability to make weight any longer. So Mijares has dropped out of the rankings from No. 5, and Rungvisai comes in to replace him at that spot. Tomas Rojas drops from No. 3 to No. 6, and the rest of the field remains the same.

This Week's Ranked Fighters in Action

Heavyweight (08/27): No. 8 Robert Helenius (15-0, 10 KO) vs Sergei Liakhovich (25-3, 16 KO)

Heavyweight (08/27): No. 10 Alexander Povetkin (21-0, 15 KO) vs Ruslan Chagaev (27-1-1, 17 KO). If Povetkin wins very impressively here, he will jump up a few spots. Povetkin has been dropped down to the No. 10 ranking upon our reshuffle about two months ago due to the fact that he just hasn't been fighting serious competition, and he twice ducked out of a fight with Wladimir Klitschko. I don't think anyone questions his actual talent -- he's among the better heavyweights out there. But his resume is lacking. A really good win over Chagaev puts him back where some would say he belongs, among the top five or so.

Welterweight (08/26): No. 7 Vyacheslav Senchenko (31-0, 20 KO) vs Marco Antonio Avendano (30-7-1, 22 KO)

Junior Flyweight (08/27): No. 2 Ulises Solis (33-2-3, 21 KO) vs Jether Oliva (17-0-1, 11 KO)

Strawweight (08/27): No. 2 Raul Garcia (30-1-1, 18 KO) vs Moises Fuentes (13-1, 6 KO)