Mets score six in 10th, hang on to top Nationals
J.D. Martinez hit a three-run homer in the top of the 10th inning Monday night for the New York Mets, who held off the host Washington Nationals 9-7 iJ.D. Martinez hit a three-run homer in the top of the 10th inning Monday night for the New York Mets, who held off the host Washington Nationals 9-7 i