When the Mets called up rookie reliever Gonzalez Germen, he was little more than a footnote, but he is pitching his way into being part of the bullpen’s foundation.

Yesterday, he tossed 1 2/3 scoreless innings of relief, including fanning Delmon Young with the bases loaded to end the fifth, en route to his first big league win as the Mets beat the Phillies 5-4.

“The biggest thing I’ve seen is strikes,” Mets manager Terry Collins said. “He’s coming right after them. I’ll tell you what, he’s throwing all his pitches over the plate, which is impressive.”

Germen also stranded the bases loaded July 13 at Pittsburgh and has pitched his way into the bullpen picture.

“He sure has. There’s no reason why we shouldn’t be using him a bit more,” Collins said. “He’s only been here a week and he’s been in three or four games already, but I tell you he’s been very, very impressive. When we look at the big picture, he’s got a great arm, he’s a young guy. We talked in spring that we needed to find some relief. It looks like he might be the guy that steps up and grabs one of those jobs.’’

* Daniel Murphy doubled in the first inning to extend his hitting streak to 10 games. He is batting .319 in that span.