DENVER — Turns out, new Dodgers closer Edwin Díaz did have an injury. It just wasn’t to his knee. The team announced Monday that its $69 million offseason signing had been placed on the injured list with loose bodies in his right elbow, and will undergo surgery on Wednesday to address the issue. He is expected to return during the second half of the season. Left-handed Jake Eder was called up from the minor leagues as a replacement. The news comes a day after Díaz struggled in his return to the