We'll round up tonight's minor moves here:
- Jeff Clement has retired, The Des Moines Register reports. Originally drafted third overall in 2005 by the Mariners, Clement never caught on in the majors, and ends his career with a .218/.277/.371 Major League line. His last big league appearance came in 2012 with the Pirates. Now a father of four, the 30-year-old tells The Register that he plans to return to school.
- The Orioles have signed Steven Hensley, who was released by the Rockies in March, Baseball America's Matt Eddy reports. The 27-year-old has never appeared in the majors. He worked almost entirely out of the bullpen for upper-level affiliates of the Rockies and Mariners last season, compiling a 4.24 ERA.
- The Dodgers have signed lefty Erick Threets, who was pitching for the independent Long Island Ducks, according to Eddy. Last we heard, Threets was looking for a job in Asia.
- The Marlins have inked infielder Rich Poythress, who was released by the Mariners in March, per Eddy. Poythress, who has yet to reach the majors, was sent to Double-A.
- The A's have signed second baseman Colin Walsh, who was let go by the Cardinals last month, Eddy reports. The 24-year-old reached Double-A for the Cardinals last season.
- Dontrelle Willis was added to the active roster of the Fresno Grizzlies, the Giants' Triple-A club, according to a tweet from the team. D-Train struggled in 21 innings with the Angels' Triple-A affiliate in 2013, posting a 6.43 ERA.
- The Nationals have selected the contract of starter Blake Treinen, the International League transactions page shows. Treinen was pitching at Triple-A, and has never appeared in the majors. The right-hander came over in last winter's three-team trade with the Mariners and A's. He's been used almost exclusively as a starter in recent years in the minors, where he owns a 3.73 ERA. Baseball America ranked him as the Nats' 23rd-best prospect this year, but wrote that most evaluators expect him to end up in middle relief.
- The Nats have inked right-hander Paolo Espino, formerly of the Cubs organization, according to Eddy. The right-hander, who works as a swingman, has yet to reach the majors but has significant Triple-A experience.