have announced academy player Anthony Renton has been diagnosed with leukemia.
Renton, 18, is currently undergoing treatment at Newcastle's Freeman Hospital.
A club statement read: "The thoughts and support of everyone at the Boro are with one of our academy players who has been diagnosed with leukemia.
"Middlesbrough-born Anthony Renton, 19 in November, is currently in the Freeman Hospital, Newcastle where where he is being treated for the first 30 days.
"As a club we have been right behind Anthony and the family offering logistical and moral support and as everyone, Anthony especially, comes to terms with the situation the need for continued support from everyone is obvious.