Houston Astros: Why the team will retain McCann and Gattis beyond 2018
Astros' Evan Gattis: From a janitor in Dallas to World Series champion
Evan Gattis - Wikipedia
Dallas Has Plenty to Root For in the 2017 World Series, Which Kicks Off Tonight - D Magazine
Evan Gattis - Wikipedia
Astros Blank Yankees in Game 7 to Clinch World Series Berth - Sports Illustrated
Houston Astros decline Brian McCann's option, look for catcher
All on the line: the Astros and winner-take-all playoff games
Houston Astros: Will The Catching Duo of Brian McCann And Evan Gattis Work? - Page 5
The Astros will need to upgrade the catcher spot this offseason
Houston Astros: A tip of the cap to Brian McCann's retirement