Craig Calcaterra

Blogger at NBC Sport.com's HardballTalk. Recovering litigator. Rake. Scoundrel. Notorious Man-About-Town.
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Marlins trade David Phelps to the Mariners for four prospects

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The Miami Marlins have sent reliever David Phelps to the Seattle Mariners in exchange for four prospects. MLB.com’s Mark Feinsand and Ken Rosenthal had rumors of the deal first, Jon Morosi, Jeff Passan and Jon Heyman (among others) all reported the trade at virtually the same time.

Phelps, 30, had a fantastic 2016 season, posting a 2.28 ERA in 64 games while striking out 11.8 batters per nine innings. He’s not been as strong this year, but he’s still been a solid setup man, posting a 3.45 ERA in 44 games while striking out 51 batters and walking 21 in 47 innings. He throws in the mid-90s and induces grounders. The Mariners could probably use rotation help more than bullpen help, but solid innings are solid innings at one point and improving your pen takes some of the pressure off of your rotation. Phelps will help Seattle with that. He’s under team control for next year too, so this is more than a rental.

The top prospect in the deal is Brayan Hernandez, a 19 year-old outfielder from Venezuela, currently playing in low-A ball. Also in the deal: righty Brandon Miller, righty Pablo Lopez and righty Lucas Schiraldi who, yes, is the son of ex-big leaguer Calvin Schiraldi. None of these guys are blue chippers, but you never know what’ll happen. It’s a volume return for the Fish.

We’ve already seen some big bullpen names move, including David Robertson, Sean Doolittle and Ryan Madson. Among others who could be moved:  A.J. Ramos (Marlins); Justin Wilson (Tigers); Addison Reed (Mets); Jerry Blevins (Mets); Brad Hand (Padres); Tony Watson (Pirates); Juan Nicasio (Pirates); Brad Brach (Orioles); Drew Storen (Reds); and Raisel Iglesias (Reds).