Overview

• The Astros acquired minor-league left-handed pitcher John Rooney from the Miami Marlins for cash considerations after the July 31 deadline.
• They cleared room on their 40-man roster by optioning catcher Luis Contreras to Triple-A Sugar Land.
• Under MLB rules, teams can trade minor leaguers not on 40-man rosters past the deadline, allowing Houston to add Rooney for immediate bullpen depth.
• Rooney was a third-round pick of the Los Angeles Dodgers in 2018 and has yet to make his major-league debut after seven seasons in the minors.
• This season at Triple-A for the Marlins, he posted a 2.45 ERA with 11 holds, four saves and 45 strikeouts over 33 innings.