Will Jason Grilli's struggles lead to an opportunity for Mark Melancon to close? Also, a look at how Olt and Valbuena could both see consistent at-bats in Chicago, and the struggling middle infield in St. Louis.

There hasn't been much fist-pumping between Hunter Pence and Pablo Sandoval this year. What's going on by the Bay?

With Heyward off to a slow start and Simmons hitting well, might ATL consider a change at leadoff? Plus, a look at the NYM closer situation, the starting rotation in PHI, and more.

Looking at skills, Cleveland closer John Axford has gotten off to a poorer start than last year when he lost his job in Milwaukee. Who would replace Axford if he continues to struggle?

David Freese has stumbled badly out of the gate. And now a quadriceps injury is forcing him to cede 3B playing time to Ian Stewart.

After torn ligament sapped Dustin Pedroia's power in 2013, he received a cortisone shot for his ailing wrist. Also: Orioles, Yankees get IFers back; a young Rays slugger; Blue Jays closer and more.

Wandy Rodriguez has lacked both velocity and results in the early going, and his manager is concerned. Plus notes from the other teams around NL Central.

There are a few slow starts going on out West. Yonder Alonso (pictured) is one of them. Can you capitalize on PT opportunities if the struggles continue?

ATL is downplaying Kimbrel's shoulder soreness, but if he eventually winds up on the DL, who would take over as the team's closer? Plus, we'll take a look at 3B in PHI, OF in NYM and the Zimmerman thumb fallout.

With Avisail Garcia out for the year, Dayan Viciedo and Alejandro de Aza should see more AB than expected. Each should be a prime FA target if either is available.

April has AL West teams wrestling with either key injuries (like Adrian Beltre, pictured) or closer committees, and sometimes both. How might some of these play out going forward?