Washington Nationals manager Matt Williams said Monday that the last time he was part of three consecutive walk-off wins he was playing for the Arizona Diamondbacks. This time, the Diamondbacks were the ones being beaten. Adam LaRoche hit a game-winning solo home run with two outs in the 11th inning to help the Nationals beat the Diamondbacks 5-4 on Monday for their seventh straight win. It was the third walk-off win in as many days for NL-East-leading Washington, with the first two coming against the Pirates. Read more http://scores.espn.go.com/mlb/recap...=arizona-diamondbacks-vs-washington-nationals