Astros sent RHP Chia-Jen Lo outright to Triple-A Oklahoma City.
Chia-Jen Lo imploded on Sunday during his second blown save, allowing two runs on three walks and a hit against the Blue Jays.
Chia-Jen Lo picked up his second save of the year Saturday in the Astros' 8-5 win over the Blue Jays.
Chia-Jen Lo and Josh Fields have emerged as the two-person committee that will close out games for the Astros.
Chia-Jen Lo earned his first career save by tossing 1 1/3 scoreless innings in Tuesday's 5-4 victory over the A's.
Chia-Jen Lo blew a save Friday night against the Twins.
Astros recalled RHP Chia-Jen Lo from Double-A Corpus Christi.
Astros optioned RHP Chia-Jen Lo to Triple-A Oklahoma City.
Astros purchased the contract of RHP Chia-Jen Lo from High-A Lancaster.
Chia-Jen Lo struck out four in two scoreless innings out of the pen for Double-A Corpus Christi on Thursday.
Astros signed RHP Chia-Jen Lo to a minor league contract.