BOSTON — Willson Contreras was suspended seven games for his role in Tuesday’s benches-clearing incident between the Boston Red Sox and Washington Nationals at Fenway Park, Major League Baseball announced Thursday evening. The veteran first baseman is one of four players to be penalized. Nationals starting pitcher Cade Cavalli also received a seven-game suspension. Fellow Nats starter Miles Mikolas received five games and Red Sox outfielder Nate Eaten was suspended three games.