Boston Red Sox reliever Justin Slaten begins rehab while Wilyer Abreu’s calf injury puts his status in doubt for key AL East stretch.

Trevor Rogers took a shutout into the seventh inning, and Gunnar Henderson had a solo homer and an RBI triple on Monday night to lead the Baltimore Orioles to a 6-3 victory over the Boston Red Sox.

First baseman Nathaniel Lowe signed with the Boston Red Sox on Monday, the club announced. The deal, which is for a prorated portion of the major league minimum after Lowe was designated for assignment by Washington earlier this month and went unclaimed on waivers,

Jakob Marsee tees off and crashes a home run into right field. Wagaman scores from first and the Marlins lead it 5-3 at a suddenly much quieter Fenway Park. Gregg Weissert had come in for Garrett Whitlock but after giving up that home run he is out of the game for Steven Matz.

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.

The loss — the Red Sox' second straight — dropped them to 2-2 on their homestand, in need of a victory on Tuesday to claim a winning record in this stretch at Fenway before heading to Yankee Stadium for the weekend.

Boston is finalizing a contract with Nathaniel Lowe and could have him in the lineup before Monday’s game against the Orioles, according to major league sources. Lowe, a former Silver Slugger and Gold Glove winner, will be on a one-year major league deal for the rest of the season.