The Astros are trading for Mike Burrows from the Pirates, pending a physical, per @Ken_Rosenthal.

It's a 3 team trade with the Rays as well.

Houston is sending Jacob Melton and Anderson Brito to Pittsburgh.

(Per-Michael Schwab)

Astros Add RHP Burrows, Part With Touted Prospects In 3 Team Swap

Having made no secret about their need for starting pitching depth this offseason, the Astros continued addressing that void on Friday. They netted right-hander Mike Burrows from the Pirates in a three-team blockbuster trade.

Houston parted with two of its top prospects in the MLB Pipeline rankings.

https://www.mlb.com/news/astros-acquire-mike-burrows-trade-rays-pirates