Elias Diaz is poised to overtake Francisco Cervelli as the regular behind the dish in PIT. Plus, Scooter Gennett closing in on a return in CIN, rotation and lineup shakeups in STL, Jimmy Nelson's return in MIL, and Tyler Chatwood's changing role for CHC.

Which infield prospects may have the chance to follow Keston Hiura to MIL this summer? Plus, the depleted rotation in PIT, Schwarber's chance for redemption with CHC, Reds on the run in CIN, and John Gant's impeccable start to the season in STL.

There has been a focus on high fastballs leading to great results for pitchers in CIN. Plus, Carlos Martinez's imminent return in STL, Adam Frazier's struggles in PIT, an opener for Yu Darvish in CHC, and Travis Shaw's struggles in MIL.

Ian Happ has cut down his strikeout rate and should return to CHC in short order. Plus, outfielders who have impressed in MIL and PIT, early struggles for Matt Carpenter in STL, and Josh VanMeter's call-up in CIN.

Jason Heyward should be given the chance to lead off for CHC. Plus, Phillip Ervin could get a chance in CIN, breaking down the first base situation in MIL, and under-the-radar prospects who could make an impact in PIT and STL.

Jose Peraza may be running out of regular at-bats in CIN. Also, Travis Shaw and Kris Bryant's slow starts to the season in MIL and CHC, the rotation in STL, and the Felipe Vazquez injury scare in PIT.

Kolten Wong finally has a green light on the basepaths in STL. Also, the return of Jeremy Jeffress in MIL, the catching situation in CHC, long-term solutions on the left side of the infield in PIT, and Robert Stephenson's impressive early-season skills in CIN.

Luis Castillo has changed his pitch mix early in 2019, resulting in a surging strikeout rate in CIN. Also: a fresh look at the outfield situation in STL and PIT, reinforcements in the CHC bullpen, and the heavy dose of fastball MIL batters continue to see.

Josh Bell looks to define himself as a hitter in PIT. Also: Freddy Peralta's red flags in MIL, crowded infield situations may limit roles of household names in CHC and STL, and Raisel Iglesias' stock watch in CIN.

Eric Thames is in a good situation to display his power in MIL. Also: stolen base upside in PIT, Carpenter concerns in STL, the domino effect of Gennett's injury in CIN, and the rotating door of relievers for CHC.

The numbers say Sonny Gray will find a happy home in CIN. Also: the backup shortstop options in PIT, the rotation coming into focus in STL, Nico Hoerner's impressive camp for CHC, and outfield depth in MIL.