Robles was designated for assignment by the Mets on Friday.
Just a few days after being demoted to the Triple-A level, Robles lost his place on the 40-man roster. He will now be subject to waivers and could latch on with another organization, though the reliever will remain with Las Vegas if he passes through unclaimed. Through 16 appearances with the Mets this season, he's logged a 5.03 ERA and 1.58 WHIP.