After the arbitrator renders his decision, the written opinion is to be issued within 30 days. It is unclear if Horowitz will issue his written opinion simultaneously with his decision.
The timing of the case could complicate planning for the Yankees, who don't know if they will have to pay Rodriguez his $25 million salary and are unsure whether they will need a different starting third baseman.
Rodriguez was suspended by Major League Baseball on Aug. 5 for alleged violations of baseball's drug policy and labor agreement stemming from the league's investigation of the Biogenesis of America anti-aging clinic in Florida. The players' association filed a grievance, and because Rodriguez was a first-time offender of the drug agreement, the suspension automatically was stayed pending a resolution of the grievance.
Horowitz heard the case in a trio of four-day sessions, with management presenting its case from Sept. 30-Oct. 3 and Oct. 15-18. Rodriguez's side then took its turn during the first four days of this week.
Rodriguez left in the middle of the 11th session Wednesday, furious the arbitrator refused to order MLB Commissioner Bud Selig to testify. Rodriguez and his lawyers then went on radio and television, accusing Selig of bias and the entire arbitration process of being flawed.