Another week of the MLB season has passed, and along with it, a new set of potential trade opportunities has emerged.

In the past seven days, there have been key injuries on contending teams, rumors of relief pitchers being made available and the constant din of a starter leaving the city of Chicago.

And as time passes, the needs of a few teams are coming sharply into focus. Individual roles, for example, are becoming more defined, which means that certain players are now available and could fill an area of weakness for another club.

To be sure, it is highly unlikely that anything mentioned here is on the verge of actually happening. It is simply too early, but now is when conversations between general managers become more intense.

Here are five trade ideas based on actual need or published speculation from the week ending Sunday, May 11.

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