In all, seven players from the 2009 draft class received contract extensions, with three – DeMar DeRozan, Jrue Holiday and Taj Gibson – going down to the wire Wednesday night. Two players received maximum extensions – top overall pick Blake Griffin and No. 3 pick James Harden, who had to change cities to get the deal he wanted. By contrast, five 2009 first-round picks became unrestricted free agents before their four-year rookie deal was completed, including No. 2 pick Hasheem Thabeet. And