David Hernandez needs Tommy John surgery

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A second opinion confirmed the initial diagnosis on David Hernandez’s elbow injury, so the Diamondbacks reliever will undergo season-ending Tommy John surgery.

Hernandez got the bad news today from Dr. James Andrews, who’ll do the honors tomorrow.

Hernandez struggled last season with a 4.42 ERA and had a particularly tough time suppressing homers, but his 66/24 K/BB ratio in 62 innings was very good and he posted a combined 2.94 ERA with huge strikeout totals between 2011 and 2012.

Arizona has the bullpen depth to withstand losing Hernandez, but he’s definitely a big loss for the late innings in front of closer Addison Reed. And based on the timing of the surgery he could miss part of 2015 as well.

Braves claim Grant Dayton off waivers from Dodgers

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The Braves claimed lefty reliever Grant Dayton off waivers from the Dodgers, Bill Shaikin of the Los Angeles Times reports.

Dayton, 29, underwent Tommy John surgery back in August and is almost certainly out for the entire 2018 season. The Braves, obviously, are making a longer-term play here by acquiring him, as he is under team control through 2022.

Over parts of two seasons in the majors, Dayton has a 3.42 career ERA with 59 strikeouts and 18 walks in 50 innings.