Strop's velocity has slipped in the last few weeks as he has had an extremely tough patch. In July, has a 7.00 ERA in nine innings pitched.

For the season, the 34-year old has a 5.20 ERA in 32 appearances.

In a corresponding move to fill his roster spot, reliever Duane Underwood has been recalled from Triple-A Iowa.

Underwood has been impressive since he has transitioned from a starter to a reliever. In the bullpen, the 25-year old has a 2.45 ERA with 35 strikeouts and only 8 walks in 25.2 innings pitched.