ESPN.com's Buster Olney is reporting that the Giants put in a waiver claim on Brewers closer Trevor Hoffman, but it is unlikely that they will make a move for him.

Hoffman was claimed by the San Francisco Giants, who may have made the claim partly for themselves and partly to impede the division rivals they are chasing, the Los Angeles Dodgers and the Colorado Rockies, from getting him.

A very smart move on the part of the Giants. Hoffman is the best closer of all-time, and historically has been most effective in the final month of the season, posting a 1.80 ERA with 90 saves in 145 games. Hoffman has having another stellar season for the Brewers, and would certainly have a positive impact on a team like the Rockies or Dodgers. 

The return that would come from Hoffman for the final month of the season would not be nearly as good as it would be if he was traded at the deadline. Hoffman has not ruled out another season, and the Brewers could bring him back for another year if they choose not to pursue one of the other available closers.