ESPN and the Denver Post are among the outlets reporting the A’s have agreed in principal to a trade with the Colorado Rockies that would send three-time All-Star outfielder Matt Holliday to Oakland. It’s unclear who the Rockies would receive in return, but Carlos Gonzalez, Huston Street, Greg Smith, Ryan Sweeney and blue-chip pitching prospect Brett Anderson all have been mentioned in the speculation (they wouldn’t all be traded together, obviously!!).

David Forst, the A’s assistant general manager, would not address the topic in any form when reached by phone. Asked if he expected any sort of announcement to come down today, Forst replied: “I don’t expect it to.”

Rest assured something is brewing, but nothing concrete yet. Hang tight …