By Brian McTaggart

Right-handed pitcher Vincent Velasquez, who went 3–0 with a 1.37 ERA in five starts at Double-A Corpus Christi, will be called up and join the Astros in Chicago on Monday, general manager Jeff Luhnow said. Velasquez, ranked as the Astros’ №4-ranked prospect by MLB.com, will start Wednesday’s game against the White Sox.

Shortstop Carlos Correa, one of the top prospects in baseball, will make his Major League debut on Monday for the Astros, who announced Sunday they were calling him up at 20 years old.

Velasquez, 23, becomes the second pitcher the Astros have called up within a month from Double-A without even throwing a pitch at Triple-A. Lance McCullers Jr., who will start Monday’s game, was called up from Fresno shortly after being promoted from Double-A.

Roberto Hernandez, who’s 2–5 with a 5.18 ERA in 11 starts, has been told he’s being moved to the bullpen. He’s currently the scheduled starter for Wednesday.

Velasquez, a second-round pick in 2010, missed the first month of this season after suffering a strained right lat on Nov. 4 while playing in the Arizona Fall League. He missed two months last season with a strained groin and all of the 2011 season after undergoing Tommy John surgery. When healthy, he had a nice 2014 at Class A Advanced Lancaster, going 7–4 with a 3.74 ERA in 15 games (10 starts).