From Merkin's story this afternoon:
Starting pitchers (4): Garrett Crochet, Michael Soroka, Erick Fedde, Chris Flexen
Crochet’s first Major League start also will be his first Opening Day start. Although he’s a rookie, Nastrini, Chicago's No. 8 prospect, has shown good stuff and good results in Arizona (3.77 ERA across 14 1/3 innings), possessing the moxie to carry himself through rough big league starts. With the White Sox not needing a fifth starter until April 3, they will break with nine relievers and Nastrini should get the call at that point.