MLB trade rumor season doesn't really heat up until the calendar flips to June, but as Memorial Day approaches, we are beginning to get an idea of what some of the main storylines will be in advance of July 31.

Pittsburgh Pirates starting pitcher Paul Skenes has already surfaced in MLB rumors as a potential trade candidate, as arguably the

Trade Paul Skenes? The Pittsburgh Pirates should build around Paul Skenes. But they punted on an opportunity to do that last offseason, and the chances of owner Bob Nutting splurging this offseason are about as good as his team’s current playoff odds — 0.3 percent.