Although he was limited to just 117 games last season, mainly due to a hamstring injury which cost him almost a month, Contreras still finished as a top-six catcher in standard formats. He posted a mighty healthy .223 ISO, which would have been a top-50 overall mark in baseball had Contreras logged enough plate appearances to qualify, and he improved both his strikeout (22.9 percent) and walk (10.5 percent) rates from his already strong marks as a rookie. The 25-year-old barrels the ball up consistently and he hits same-handed pitching well, as evidenced by his .273/.347/.486 career line against righties (.292/.379/.514 against lefties). Contreras has established himself as a legitimate middle-of-the-order bat in a good offense, and his ability to play the outfield and first base in a pinch helps pad his counting totals a little more than other starting catchers. Buster Posey may go ahead of Contreras in a lot of drafts, but Contreras could outproduce the veteran in 2018.

After taking a big step forward at the plate during his 2015 campaign at Double-A, Contreras raked at Triple-A Iowa to begin the season and forced his way onto the Cubs' 25-man roster in short order. Especially for a 24-year-old, his performance was impressive, as he continued to show a discerning eye (9.2 percent walk rate) while flashing 20-25 home run pop. Additionally, Contreras proved to be an above-average defender, which should give him the starting job again in 2017 regardless of what the team does with Miguel Montero. Although his overall line fell during the second half, Contreras cut his strikeout rate from 26.9 percent to 22.1 percent during that span. Moreover, Contreras demonstrated the ability to handle righties and lefties, swatting 10 of his 12 homers against the former while maintaining a slightly higher OPS against the latter (.854). Contreras' pop and run-production potential give him a chance to finish as a top-five catcher in 2017.

Contreras spent the whole year with Double-A Tennessee in 2015 and easily had the best season of his professional career. The 23-year-old backstop batted .333 with 75 RBI and 71 runs for the Smokies and has played his way into the Cubs' long-term plans. With Kyle Schwarber possibly sticking in the outfield, another good year in the minors for Contreras could put him in contention for a spot on the 2017 roster. His BB:K ratio was abysmal coming into 2015, but he learned to take pitches last year, and it paid off in spades. That 57:62 BB:K is appealing, especially coming from a catcher, but he'll need to do it again before we should get too excited.