The Thunder recently held a free-agent workout that included centers Willie Reed and Jeff Withey, according to Alex Kennedy of Hoops Hype. Reed played 39 games with the Clippers before he was thrown into the Blake Griffin blockbuster with the Pistons. He was traded to the Bulls shortly thereafter and then waived. Withey played nine games with the Mavericks last season. The cap-strapped Thunder will be seeking low-cost alternatives to fill out their bench.