The Mets will designate Matt Harvey tomorrow, GM Sandy Alderson tells reporters including MLB.com’s Anthony DiComo (via Twitter). The decision was made after Harvey declined to accept a minor-league assignment — as he has the ability to do given his MLB service time. It’s stunning, on the one hand, to see the end of Harvey’s tenure in New York take place in this manner. As recently as 2015, after all, he was considered one of the game’s very best starters. But ongoing injury problems combined with performance lapses — along with some off-field issues and not-infrequent tension with the organization...