Top 10 MLB prospects who could be called up in April

Although the new baseball season is underway and several teams look different than they did last season, there are still further makeovers yet to take place. Even more MLB rosters will be altered as some of the game's top prospects make their way to the big leagues.

Many such talents have already begun to see their stars rise, none more than the Braves’ Ronald Acuna. The 20-year-old phenom’s debut has only been delayed due to the technicalities of contractual control, and he is far from alone in that regard.

With Acuna’s graduation date from the minors drawing nearer and nearer, it is a good time to take look around at which rookies-to-be will join him early in the new year to begin to make good on the promise they have shown in the minors.

1.Ronald Acuna, Braves

After a spring training where he not only lived up to the hype, but somehow raised it even higher, Acuna’s MLB debut is imminent. In reality, he should have made the team outright and may likely already be the best Brave not named Freddie Freeman, but due to contractual issues, he became this year’s annual "least deserving demotee." However, April will not come to a close without Acuna adorning a Braves cap for the first time and beginning what could be a successful Rookie of the Year campaign.

2. Alex Reyes, Cardinals

Reyes’ debut in St. Louis has been a year overdue after Tommy John surgery pushed him back some 15 months from making a permanent impact in the Cardinals' rotation. However, in an encouraging spring training, he showed he's lost little in the way of stuff, with his fastball maintaining its upper-90s livelihood. It is still uncertain exactly how Mike Matheny will leverage his young hurler, but whether it be as a starter or bullpen weapon, Reyes’ impact is one of the most anticipated additions to a talented young pitching staff.

3. Nick Senzel, Reds

The polished bat of Senzel is MLB-ready right now, but he too is on a timing delay due to service time control. When the deadline passes for Cincy to secure another year of service from the talented young slugger, he will be up in short order. While it is uncertain how the club will balance his at-bats with those of incumbent third baseman Eugenio Suarez, getting Senzel in the mix will be a priority for the Reds' rebuild this year.

4. Willy Adames, Rays

Tampa Bay has undergone a plethora of changes since last summer, which has created multiple opportunities for younger players. The versatility of the club’s top prospect, Adames, should facilitate a place for him to secure a long-term stay with the club. While Adames could contribute at second base, he is a naturally skilled shortstop who projects as a long-term fixture at the keystone.

5. Willie Calhoun, Rangers

Calhoun was the centerpiece return from the Dodgers in exchange for Yu Darvish at last year’s trade deadline and quickly landed a September audition in left field. Although he did not break camp with the team this spring, it should not be long before he finds his way to Arlington once and for all. Calhoun has proved everything he can as a minor leaguer after reaching at least 28 homers, 88 RBI and 25 doubles in each of the past two years at Double- and Triple-A, respectively.