Mets GM Sandy Alderson undergoing cancer treatment, taking leave of absence Unknown 00:37 Alderson told reporters at a press conference his “prognosis was good” but he may not return as New York’s general manager. Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsSantos Laguna vs. Toluca: TV channel, live stream, team news & match previewRafael Nadal Eases Past Shapovalov, Novak Djokovic Back Challenging in RomePep Guardiola Extends Manchester City Contract to 2021Eder, Nani Among Many Absentees in Portugal World Cup squadDimitri Payet, Martial Left Out of France World Cup Squad, Mendy IncludedGareth Southgate Happy to Let England Stars off the Leash