Nationals acquired LHP Reiver Sanmartín from the Giants for RHP Robert Cranz.

Sanmartín, who was DFA’d on Monday, had a 4.22 ERA in 24 appearances for the Giants last season. The 30-year-old seems more like a quality minor league signing than someone a team should keep on a 40-man all winter, but the Nationals are optimistic about something here. They also claimed fellow reliever Braxton Roxby off waivers last week and traded for Nate Furman on Sunday, so they’ve now taken advantage of the Giants’ roster purge three times.