Diamondbacks first-round pick Barret Loux will become a free agent on Sept. 1 as part of an agreement approved by commissioner Bud Selig. Arizona selected the right-hander from Texas A&M with the sixth-overall pick in June's amateur draft, but he did not sign due to health concerns by the club. Typically, draft picks who don't sign must re-enter a subsequent draft and the team receives a compensatory pick. The agreement allows Loux to sign with any team and gives Arizona the seventh pick in next year's draft as compensation.