Baseball has enjoyed nearly two decades of labor peace, but a battle may be on the horizon as Major League teams have thought about pushing for non-guaranteed contracts.

Contracts in Major League Baseball heavily favor the players, but the MLBPA has grown concerned over some guarantee language in recent deals that may be looking to steal some of the power.

Some teams have tried to implement a conversion clause that allows them to make a guaranteed contract non-guaranteed in certain situations.

Much of this relates to performance-enhancing drugs, but it also deals with legal woes.