CBSSports.com Baseball Insider Jon Heyman reported Sunday Pirates pitcher prospect Gerrit Cole is expected to be promoted to the majors later this summer. I wouldn't anticipate a promotion before May and that date could be pushed back depending on how the Pirates begin the season.
The back of the rotation has some question marks until Francisco Liriano (arm) and Charlie Morton (elbow) return from injuries. Cole could certainly pitch his way into the majors, but since the Pirates have options, then there will be no need to rush the No. 1 overall pick from the 2011 draft.
I only recommend stashing Cole in deeper mixed-league and NL-only Fantasy formats. He will be a must-add in shallower formats once he's promoted to the majors, but he can't occupy a roster spot in those leagues with his ETA to be determined.