The New York Mets’ youth movement continued Friday when they recalled top pitching prospect Jonah Tong from Triple A to help give their starting rotation a break.With the Mets in a stretch of 16 straight days with a game, versatile reliever Tobias Myers is set to start Friday against the Miami Marlins, but it’s likely Tong will appear in the game to cover multiple innings. Myers is not stretched out beyond a couple of innings; Tong was scratched from his Triple-A start on Wednesday.To make room on the active roster for Tong (the right-hander was already on the 40-man roster), the Mets designated veteran reliever Craig Kimbrel for assignment. New York essentially telegraphed the move Wednesday when they had the 37-year-old log 2 2/3 innings in a loss to save them from using anyone else.Over 14 appearances and 15 innings with the Mets, Kimbrel, once one of the game’s great closers, had a 6.00 ERA. The Mets signed him to a minor-league deal, and though he failed to make the team out of spring training, he joined them in mid-April.It’s unclear how long Tong’s stay with the Mets will last. New York may soon need to make another move if they reinstate lefty reliever A.J. Minter from the 60-day injured list. Mets manager Carlos Mendoza said earlier in the week that Minter would pitch once more over the weekend in Triple A and could be activated early next week. One possible scenario would be that the Mets option Tong for another reliever on Saturday or Sunday and then swap that reliever for Minter on the roster.