First baseman Nathaniel Lowe on Monday formally signed with the Boston Red Sox, 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,

Free agent first baseman Nathaniel Lowe is signing with the Boston Red Sox, ESPN reported on Sunday night.

The lefty slugger addresses a need for Boston that has lingered ever since Triston Casas ruptured the patellar tendon in his left knee.