So I just got off the phone with someone at the Yankees ticketing office. I wanted clarification on the bundled ticket situation, but she didn’t offer any more information than what has already been published. If you only want to attend the RM/Milan game on August 8, you’ll have to wait until individual tickets go on sale. That date was not given.  

For now my best suggestion is to follow the Yankees’ events Twitter & soccer page for up-to-date information.