Nationals signed RHP Greg Ross to a minor league contract.
Ross was released by the Orioles at the end of spring training. The 25-year-old hurler has reported to High-A Potomac where he'll serve as starting pitching depth for the Nationals.
Giants signed C Steven Lerud to a minor league contract.
Lerud was let go by the Mariners on April 6. A career .224/.318/.349 minor league hitter, the 31-year-old backstop is nothing more than organizational catching depth for the Giants.
Red Sox recalled INF Marco Hernandez from Triple-A Pawtucket.
The 23-year-old infielder appeared in one game with the Red Sox earlier this month, going 1-for-2 plus a walk in his three plate appearances. He provides depth on the bench for the Red Sox, but isn't expected to play enough to generate any type of fantasy value.
Red Sox optioned RHP Pat Light to Triple-A Pawtucket.
The 25-year-old right-hander appeared in just one game out of the Red Sox bullpen, surrendering two runs on two hits in his lone inning of work. He'll bide his time at Triple-A until he's needed again later in the season.
According to Pedro Martinez, Eduardo Rodriguez is just starting to build up his leg strength, and as a result could potentially need up to three more minor league rehab starts before he rejoins the Red Sox.
Rodriguez struggled in his first rehab start with Triple-A Pawtucket on Thursday, surrendering three runs on six hits and three walks in 3 2/3 innings. Henry Owens will continue to occupy a spot in the Red Sox rotation until Rodriguez is deemed ready.