2002 U.S. Freestyle World Team member Cael Sanderson (Ames, Iowa/Sunkist Kids) has hired Clint Roberts of Minneapolis, Minn. as his new agent.    Roberts previously worked with Sanderson at Iowa State Univ. as an assistant Sports Information Director during Sanderson's first two seasons.    "Clint is someone that I am comfortable with representing me," Sanderson stated. "We have worked together before and I feel that he will look out for my needs and interests as much as possible. He is very skilled in this profession and our personal relationship will be an asset to our professional relationship."    Sanderson asks that all requests for his services now go through Roberts, who can be reached by e-mail at clintonproberts@yahoo.com or by phone at (612) 749-2360.