St. Louis Cardinals prospect Alex Reyes pitched for the Peoria Chiefs in 2014. (Photo by Craig Wieczorkiewicz/The Midwest League Traveler)

Top St. Louis Cardinals pitching prospect Alex Reyes has been suspended for 50 games after testing positive for marijuana a second time. The righthander was considered a “must-see” prospect in the Arizona Fall League, as I wrote in this post.

Because he was pitching in the Arizona Fall League at the time of his suspension, Reyes’ ban begins with the final 10 games of the AFL season before resuming at the start of the 2016 season.

Reyes pitched for the Peoria Chiefs in 2014, going 7-7 with a 3.63 ERA, 137 strikeouts and 61 walks in 109 innings (21 starts). He split most of the 2015 season between High-A and Double-A, cumulatively going 5-7 with a 2.49 ERA, 151 strikeouts and 49 walks in 101.1 innings (22 starts).