The Bulls will try to acquire some size with their $15M of cap room as they go into the free agency negotiating period on Saturday, with Detroit bruiser Ben Wallace and Atlanta tweener Al Harrington the best bets to get the first calls, the Chicago Tribune is reporting.

While Othella Harrington and Darius Songaila are unlikely to return, the Bulls may also look towards Portland big man Joel Przybilla, Nazr Mohommed from San Antonio and Cleveland restricted free agent Drew Gooden, all of whom the Bulls have a stronger chance of securing than they do for Wallace.

Denver forward Nene is also a possibility, according to the Tribune, but the Nuggets have made Nene and Carmelo Anthony their off season priorities.