Mets left-hander Jon Niese was officially activated from the 15-day disabled list on Saturday night and will make his 2014 regular-season debut in Sunday afternoon’s series finale against the Reds. Infielder Wilmer Flores was optioned to Triple-A Las Vegas in a corresponding 25-man roster move.
Niese is getting off to a delayed start this season because of elbow inflammation that bothered him for much of spring training. He went 4 2/3 innings in a simulated game last week and should be able to throw around 100 pitches in his debut on Sunday.
The 27-year-old registered a 3.71 ERA and 105 strikeouts in 143 innings last summer for New York.