Major League Baseball Players Association executive director Tony Clark is not ready to endorse the idea of an international draft.

Rob Manfred recently said of an international draft: "It makes all the sense in the world to have a single method of entry."

"The idea of a worldwide anything or an international anything in a lot of ways sounds great in theory," Clark said. "But fundamentally, there are a tremendous amount of challenges based on what is already part of the system and/or what is not part of any individual system in any individual country — with respect to how those players are being developed, with respect to how those players are being educated, against the backdrop of when they're being asked to make decisions about their professional careers.

"Here in the States, we have a process and protocol in place that allows players to develop and grow and be in school and be educated — and make educated decisions at 18 or 21 or 22, when they come out of college. To simply take a system that appears to work — and I say 'appears' purposely — appears to work in one place and plop it down in another is a dangerous proposition.

"Again, in theory, I can appreciate how easy it may sound to have everyone enter our game the same way. But the challenges that exist are far greater than most are giving credit for."