The ALCS begins Friday night with Game 1 at Minute Maid Park in Houston.
Adding McHugh gives the Astros 12 pitchers and 13 position players on their active roster. Dallas Keuchel starts Game 1 for Houston on Friday night, with Justin Verlander to follow in Game 1.
McHugh was 5-2 with a 3.55 ERA in 12 starts for Houston during the regular season. The 30-year-old right-hander struck out 62 and walked 20 in 63⅓ innings. He replaced infielder Tyler White, who was on the Astros’ ALDS roster against the Boston Red Sox but did not play in any of the four games.
Astros ALCS roster
Right-handed pitchers (10): Chris Devenski, Ken Giles, Luke Gregerson, Will Harris, Lance McCullers Jr., Collin McHugh, Charlie Morton, Joe Musgrove, Brad Peacock, Justin Verlander
Left-handed pitchers (2): Dallas Keuchel, Francisco Liriano
Catchers (3): Juan Centeno, Evan Gattis, Brian McCann
Infielders (5): Jose Altuve, Alex Bregman, Carlos Correa, Marwin Gonzalez, Yuli Gurriel
Outfielders (5): Carlos Beltran, Derek Fisher, Cameron Maybin, Josh Reddick, George Springer