The Boston Red Sox’s bullpen has been among the best in baseball this season, yet this weekend proved forgettable for the relief corps and highlighted a potential weakness for the team as it fights for a postseason spot.

The Boston Red Sox need to address the elephant in the room — or the bullpen, in this case. It's time for Craig Breslow to shake up the relief crew.

The Red Sox begin a weird, rare, two-game series with the Baltimore Orioles on Monday. Before the game, they made several roster moves. Nathaniel Lowe is the most notable of the bunch, though Rob Refsnyder’s hitting the IL with an injury is significant given the Orioles’ starting pitcher,

Jackson Holliday will lead things off and play second base. Jordan Westburg and Gunnar Henderson will take the left side of the infield, and Ryan Mountcastle will play first base. Jeremiah Jackson will slot in as the DH, so Coby Mayo will begin the game on the bench.

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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.

Nathaniel Lowe will be with the Boston Red Sox for their home series this week, but an important veteran bat will not.

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.