Miami Marlins acquire lefty relief specialist Hunter Cervenka from Atlanta Braves

DENVER -- It wasn't a sleepy Saturday for the Marlins, who pulled off another deal to bolster their bullpen for a postseason push.

The Marlins acquired lefty relief specialist Hunter Cervenka from the Braves for a couple of prospects, infielder Anfernee Seymour and left-handed pitcher Michael Mader.

Cervenka's numbers have been impressive, especially against lefty hitters. In 50 appearances out of the bullpen for the Braves, the 26-year-old rookie has gone 1-0 with a 3.18 ERA. Left-handed batters have hit just .145 against him. He's struck out 35 batters in 34 2/3 innings for Atlanta.

The Marlins are giving up a speedster in Seymour (36 stolen bases for Single A Greensboro) and a lefty minor-league arm in Mader (7-6, 3.50 for Single A Jupiter). Mader was the Marlins' third-round pick in 2014 while Seymour was taken in the seventh round that same year.

Cervenka gives manager Don Mattingly a much-needed lefty specialist he can employ in late-inning matchup situations. The Marlins' incumbent left-hander, Mike Dunn, has never been significantly more effective against left-handers than he was facing right-handed swingers.

No word yet on who the Marlins will take off their 25-man roster to make room for Cervenka.