keywords: martin retires loss retirement losing
text: Martin Retires After Losing at U.S. Open (AP) AP - There would be no fifth set this time for Todd Martin. Martin announced his retirement Monday after he failed to close out the fourth set in a 4-6, 6-4, 6-4, 7-5 loss to No. 31 Fabrice Santoro in the first round of the U.S. Open.