The couple welcomed Maverick Joshua and Ryder Blaze to the world.
In an Instagram gallery posted Thursday, the outfielder said Ryder, who weighed in at 5 pounds, 10 ounces, "was having some trouble breathing" and spent the night in the neo-natal ICU. Ryder would still need to be monitored for at least another 24 hours, Josh added.
Maverick outweighed his brother at 6 pounds.
"We can't wait to be officially together as our family of 4!" Josh concluded his post.
Back in April, the couple announced the arrival of the kids in an Easter-themed posting.
SEE MORE: Astros star Josh Reddick and wife expecting twin boys in October
Reddick is hoping to add another ring to match his twin boys. He and the 'Stros play Game 1 of the American League Division Series on Friday.
The video above is from a previous story.
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Astros' fan creates iconic rainbow sweater for Josh and Jett Reddick's twin boys
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