The Oklahoma Thunder signed Robert Vaden from their D-League affiliate the Tulsa 66ers Saturday, and then Thunder GM Sam Presti immediately assigned him back to the 66ers.

Vaden now fills the 15th spot on the Thunder's roster.

Vaden was drafted by the Charlotte Bobcats in the second round of the 2009 draft, and then acquired by Oklahoma City in a draft day deal.

He has played this entire season with the 66ers. Before joining the 66ers, he spent all of 2009-10 playing in Italy.