Antonio Senzatela

Senzatela began the season working out of the Rockies' bullpen. In early May, he was demoted to Triple-A Albuquerque after posting a bloated 6.23 ERA in 10 appearances spanning 17.1 innings. Senzatela righted the ship on the farm, posting a 2.15 ERA over eight starts. He was recalled in early July and inserted into the Colorado rotation. Senzatela's stint as a starter was interrupted by a pair of DL visits, first with a blister, then due to shoulder inflammation. In his five starts during that span, Senzatela recorded a mediocre 4.81 ERA with a pedestrian 28 whiffs in 39.1 stanzas. The 23-year-old righty then went on a run, posting a 2.94 ERA over his final six starts, punching out a slightly more respectable (but still weak) 27 in 33.2 innings. With his strong finish, Senzatela will likely be in the mix to break camp at the back end of the Rockies' rotation. However, he lacks the requisite arsenal to defeat Coors Fields for an extended period.

Senzatela earned a rotation spot out of camp and fared well in his first six starts (2.84 ERA, 1.03 WHIP), but he endured a nine-run blowup on June 22 and spent the rest of the year bouncing between the rotation and bullpen. Working primarily fastball/slider, with occasional curveballs (3.3 percent) and changeups (3.6 percent) mixed in, Senzatela struck batters out at an 18.1 percent clip. He limited the long balls on the road thanks to a 50.1 percent groundball rate (0.65 HR/9), but as is the case with most pitchers at Coors Field, Senzatela struggled with homers at home (1.45 HR/9, 5.15 ERA). The right-hander's walk rate increased to 9.6 percent in the second half and he allowed a .327 wOBA to right-handed batters for the season. Youth is on his side, but right now Senzatela is a low-strikeout, two-pitch pitcher without a defined role, who has to pitch half of his games in the best hitter's park in baseball.

Senzatela shot up the Rockies' prospect rankings after putting up numbers worthy of the Organizational Pitcher of the Year award with High-A Modesto in 2015. As one would expect, expectations were pretty high for the right-hander heading into the 2016 campaign, but things didn't go as planned. He spent a month in the beginning of the season on the disabled list due to shoulder inflammation, then it returned a month after that and kept him out for the remainder of the year. Senzatela's final line was phenomenal, though, as he finished with a 1.82 ERA, a 1.05 WHIP, and a 0.3 HR/9 in seven starts with Double-A Hartford. Missing most of 2016 will likely slow the 21-year-old's path to the majors, but thanks to an arsenal that includes a mid-to-upper-90s fastball and a developing swing-and-miss slider, Senzatela could find himself with the major league club in 2018. He has No. 4 starter upside, but could be a high-leverage reliever if that doesn't work out.

Senzatela may still fit best at the back of a rotation long term, but his 2015 numbers should keep him on prospect radars for now. His command was already pretty special heading into 2015, but the spike in K-rate, up to 23 percent from 14.8% in 2014, suggests development of his secondary offerings. Double-A will prove to be a major test for the 6-foot-1 righty in 2016, but he is starting to look like a No. 4 starter with the upside to be a No. 3 if everything clicks. The Rockies understandably protected him from the Rule 5 draft by adding him to the 40-man roster during the offseason, and he could be knocking on the door of the big leagues sometime in 2017.