Mets hope Edwin Diaz's return boosts bullpen vs. Pirates

(Photo credit: Gregory Fisher-USA TODAY Sports)

New York Mets closer Edwin Diaz is set to return on Sunday following a 10-game suspension for violating MLB's policy on foreign substances, providing much-needed relief for a beleaguered bullpen.

The Mets continue a four-game series against the host Pittsburgh Pirates on Saturday after giving upseven home runs in Friday's 14-2 loss.

Bryan Reynolds and Rowdy Tellez each hom