From The Globe, at 6:30 EDT

Jon Lester's family asked the Red Sox to release the following statement:

Jon Lester has been diagnosed with a treatable form of anaplastic large cell lymphoma and will begin treatment within the coming week.

Jon and his family wish to thank all those involved in his care at Massachusetts General Hospital. Our gratitude also extends to the Red Sox organization which has provided Jon and his family much needed support during this ordeal.

We ask that you respect our need for privacy during this difficult time.