Chris O'Meara/Associated Press
2017 Stats: 33 GS, 13-9, 3.09 ERA, 149 ERA+, 1.31 WHIP, 164 K, 201.0 IP, 5.8 WAR
Contract Status: Arbitration-eligible, under control through 2020
This one would have been a lot tougher a year ago.
However, after a down season from Roberto Osuna (10 blown saves) and an injury-shortened campaign from Aaron Sanchez (36.0 innings pitched), the clear choice is Marcus Stroman.
A popular breakout candidate heading into the 2016 season, Stroman took an extra year to truly arrive as the ace of the staff, but there's little doubt that role now belongs to him.
Any remaining questions of whether his 5'8" frame could handle a starter's workload have been erased by back-to-back 200-inning seasons.
He's still working to rein in his electric stuff and keep his emotions in check, but his fiery demeanor on the mound and charismatic personality off it makes him the perfect face of the franchise.
Change is coming for the Blue Jays with Josh Donaldson staring down free agency next offseason and a number of others set to depart as well.
Expect Stroman to be the constant.
Roberto Osuna (22), Aaron Sanchez (25), Devon Travis (26)
Source : http://bleacherreport.com/articles/2753124-every-mlb-teams-most-promising-young-building-block