Red Sox optioned LHP Tommy Layne to Triple-A Pawtucket.
The move opens a spot for new reliever Jean Machi, who is officially joining the Red Sox on Thursday night. Layne has a 3.51 ERA in 33 1/3 innings of relief this season. He'll probably get another shot soon.
Braves acquired RHP Zachary Bird from the Dodgers in the three-team, 13-player Hector Olivera trade.
Atlanta is also getting infielder Hector Olivera, lefty reliever Paco Rodriguez, and the Marlins' 2016 competitive-balance draft pick. Bird, a ninth-round pick of the Dodgers in 2012, has a 4.75 ERA, 1.37 WHIP, and 95/48 K/BB ratio in 89 innings this season at High-A. The 21-year-old is far from a top prospect.
Red Sox recalled RHP Jonathan Aro from Triple-A Pawtucket.
Aro allowed six runs in 4 2/3 innings of relief earlier this season with Boston. The 24-year-old righty is probably going to be pitching in low-leverage situations.
Red Sox designated OF Daniel Nava for assignment.
Nava was batting just .152/.260/.182 in 78 plate appearances this season for the Red Sox, but he's had some past success at the major league level and will likely draw interest on waivers. Boston needed to clear a roster spot for new reliever Jean Machi.
Marlins acquired RHP Kevin Guzman from the Dodgers in the three-team, 13-player Mat Latos trade.
Guzman is one of three minor league right-handers the Marlins are getting in this massive swap. The 20-year-old Venezuelan holds a decent 3.36 ERA, 1.29 WHIP, and 142 strikeouts in 179 1/3 career minor league innings. He was stationed with one of the Dodgers' Low-A teams.
Pirates designated RHP Vance Worley for assignment.
The move opens a roster spot for Joe Blanton, who was acquired from the Royals late Wednesday night. Worley, 27, had a 3.78 ERA, 1.36 WHIP, and 47/19 K/BB ratio in 69 innings (eight starts, 12 relief appearances) this season for the Pirates. He is sure to draw some interest on waivers.
Todd Frazier is not in the Reds' starting lineup on Thursday night against the Pirates.
It's just a day of rest for the star third baseman. Ivan DeJesus Jr. will handle the hot corner.
Ryan Zimmerman's solo home run in the second inning of Thursday afternoon's win over the Marlins would be the only run either team scored in the game.
Zimmerman took a Dan Haren offering for a ride in the second inning. Little did he know, that would be the only run scored in the game. Max Scherzer made sure it stood up, as the Nationals improved to 54-46 with the win. The slugger was just recently activated from the disabled list after missing over a month and a half with plantar fasciitis of the left foot. He's hitting .216/.272/.369 with six homers and 35 RBI over 222 at-bats. If he's healthy, those numbers should rise, but betting on Zimmerman's health is always a risky proposition.