What It Means:

The Cardinals were hoping that their top prospect would be a major part of their rotation this year, but Reyes will be forced to spend the entire 2017 season in rehab mode. He's still only 22-years-old, so the future remains bright for the talented right-hander.

Reyes excelled during his first stint in the majors, as he posted a 1.57 ERA, 1.22 WHIP and 27.5 strikeout percentage across 46 innings (five starts) in 2016.