New York Mets general manager Sandy Alderson has been diagnosed with a 'very treatable' form of cancer, the team has announced.

The cancer was discovered when Alderson underwent a medical procedure three weeks ago and he was due to begin chemotherapy this week.

"Surgery was performed at Memorial Sloan Kettering in New York and as a result of that procedure, the doctors confirmed that Sandy has cancer," Jeff Wilpon said. "The doctors believe and have told Sandy that the cancer is very treatable and are optimistic about a full recovery."