When the SunsÂ’ front office personnel traveled to Las Vegas for the NBA Summer League, there was more to their plans than just evaluating their team and dining on plentiful buffets. One service that the summer league affords is the ability to watch other young players compete against one another. That service has paid dividends for the Suns, who signed forward Louis Amundson on Thursday to a one-year contract, just weeks after scouting his talents in Sin City.