Fantasy baseball waivers and the acquisition of fantasy baseball free agents can make or break your season. Your fantasy baseball cheat sheets won't help you after spring training. If your team remains the same after opening day, you will have trouble competing in your rotisserie baseball league.

Do you need to replace your fantasy baseball busts? Which fantasy baseball players can you ignore? KFFL.com's Fantasy Baseball Diamond Market gives you fantasy baseball tips and insight to sort through the masses quickly.

Key

Outfielders

Ryan Kalish, OF, Boston Red Sox

Remember the name

Jacoby Ellsbury (ribs) is probably out for the rest of the year. Mike Cameron is probably out for the rest of the year. Boston's center fielder (or at least outfield regular) for the foreseeable future: Kalish.

If you were waiting to acquire him because you were hoping for a more certain future, you won't get much better than this. The Sox prospect can hit for average, steal some bases and hit a few dingers. He's potentially a future 20-20 type. Kalish is batting .300 with two homers, eight RBIs and a theft in his 50 at-bats.

Shallow mixed: Watch

Deep mixed: Acquire

AL-only: Acquire

Darnell McDonald, OF, Boston Red Sox

McDonald also benefits from the absences of Ellsbury and Cameron, and it doesn't hurt that the BoSox placed Eric Patterson (neck) on the DL, either. He can play in left and center. This outfield is pretty depleted, so McDonald could be a staple going forward. Daniel Nava may also be a factor.

McDonald is hitting .265 with eight round-trippers, 30 RBIs and six stolen bases in 245 at-bats. That's about right. He's streaky and can be a drag for stretches. But he can get hot for spells, too. He has gone deep in two straight games, so maybe this is one of those times.

Shallow mixed: Pass

Deep mixed: Consider

AL-only: Acquire