The Pirates put left-handed pitcher Wandy Rodriguez on the 15-day disabled list today because of inflammation in his right knee.
To fill Rodriguez's spot on the roster, the Pirates recalled right-handed reliever Jared Hughes from Class AAA Indianapolis.
Rodriguez, 35, has allowed 26 hits, 17 runs and seven home runs in 20 innings pitched across four starts this year. He has a 7.65 ERA and his average fastball velocity has dropped more than one mile per hour from 2013.
"I have a problem with my location," Rodriguez said Saturday, after his most recent start. "I don’t know, though. I missed a lot. I got in my mind, throw the ball down. I kept missing. I got in my mind throw the ball inside, wherever I want."
Rodriguez missed the final four months of last season due to an injury to the flexor tendon in his left forearm. He also dealt with a hamstring strain early last season.
Rodriguez's turn in the rotation comes up Thursday. Hughes is here to help a bullpen that had to cover five innings Saturday night and five innings during Sunday's 14-inning game. Class AAA right-hander Phil Irwin pitched Saturday, is on the 40-man roster and would be pitching on regular rest. Hurdle could also start Jeanmar Gomez or Stolmy Pimentel.
Hughes has allowed two hits and two walks with seven strikeouts in six scoreless innings for Indianapolis.
Reliever Jason Grilli, who pitched Saturday and Sunday, is unavailable tonight due to his recent workload.