The Washington Nationals have formally announced — per Jamal Collier of — that second baseman Daniel Murphy underwent successful surgery to repair some damage to the articular cartilage in his right knee. Murphy rang in his third All-Star honor this season, finishing the regular season hitting .322 with 23 homers, 43 doubles and 93 RBIs. The infielder piled up a 4.3 WAR in 2017, adding onto his career clip of 19.9. Murphy has strung together two of his best seasons in Washington since signing with the National League East club following the 2015 campaign. He had a career year in 2016, his first in the nation’s capital, hitting .347 with 25 homers, 47 doubles and a career best 5.7 WAR.