Astros prospects Carlos Correa and Mark Appel will begin the 2015 season at Double-A Corpus Christi, but they might not need a stint at Triple-A Fresno before making it to The Show.

"We're not going to hesitate to bring them straight up from Double-A if the need arises," general manager Jeff Luhnow told MLB Network Radio on Thursday.

Correa and Appel are ranked as the Astros' top prospects by MLB.com and Baseball America.