Mets optioned OF Kirk Nieuwenhuis to Triple-A Buffalo. Nieuwenhuis simply couldn't take advantage of at-bats he received due to injuries and struggles of his outfield mates in New York. After a good opening month to the season, Nieuwenhuis' slash line has fallen all the way to .252/.315/.376 through 314 plate appearances. He'll look to get back on track in Buffalo and return later this summer.