It was Amed Rosario’s first, and he made it count. On the day Mets No. 2 prospect Dominic Smith debuted, it was Rosario, their No. 1 prospect according to MLBPipeline.com, who stole the show. Just minutes after the Phillies climbed back to tie the game in the eighth, Rosario smacked his first career big league homer, a go-ahead shot in the ninth, to propel the Mets to a 7-6 win on Friday night at Citizens Bank Park.