The Astros made the biggest move of Wednesday's trade deadline, acquiring right-hander Zack Greinke from the Diamondbacks for four prospects.

Greinke joins a rotation that includes Justin Verlander and Gerrit Cole.

Houston sent right-hander Corbin Martin, right-hander J.B. Bukauskas, first baseman Seth Beer and infielder Josh Rojas to Arizona to complete the deal.