After losing Tyson Chandler and with no true center behind Brendan Haywood, the Mavericks are in the market for big bodies, and sources close to the situation say Dallas will sign former Nets forward Sean Williams. From ESPN:“After securing his release from Israeli club Maccabi Haifa over the weekend, Williams is scheduled to arrive in Dallas in time to complete his physical and join the team Wednesday after the Mavericks’ preseason finale in Oklahoma City. Sources said that the Mavericks plan to sign the shot-blocker to a two-year deal with only a partial guarantee for the second season. The Mavericks are very familiar with the Mansfield High alumnus after his strong season in 2010-11 for the D-League’s Texas Legends, who are co-owned by Mavericks president Donnie Nelson. Williams has been out of the NBA since 2010, when the Nets ran out of patience with the big man after a tumultuous two-plus seasons. But Mavs officials are confident that they can get the best out of Williams, given the year Williams spent playing for the Nelson-run Legends and with two former Nets veterans – Jason Kidd and Vince Carter — on the roster to mentor him.”