The Boston Red Sox are adding veteran first baseman Nathaniel Lowe after the Washington Nationals designated him for assignment, according to ESPN's Jeff Passan.

Veteran first baseman Nathaniel Lowe, 30, designated for assignment by the Washington Nationals earlier this month, and the Boston Red Sox are finalizing a deal, sources told ESPN, paving the way for him to join one of the strongest lineups in baseball.

The Boston Red Sox signed first baseman Nathaniel Lowe to a one-year contract Monday, two days after he was released by the Washington Nationals. To make room on the roster, the Red Sox placed outfielder Rob Refsnyder on the 10-day injured list with a strained muscle on his left side.