The Astros aren't resting on their World Series laurels.

The World Series champions bolstered their shot at a repeat by trading for the Pirates' Gerrit Cole on Saturday afternoon. The Astros got Cole from the Pirates for reliever Joe Musgrove, third baseman Colin Moran, reliever Michael Feliz and minor league outfielder Jason Martin. Only Musgrove was assured of a spot on the 2018 big league roster.

Cole, who finished fourth in the National League Cy Young Award voting in 2015, will slide into the middle of an Astros rotation that will be headlined by Cy Young Award winners Justin Verlander and Dallas Keuchel.

Browse through the photos above to learn more about the newest Astros starter Gerrit Cole.