The 20-year-old is expected to return to full health and resume training for the 2019-20 season when his treatments are complete and he receives clearance. He was diagnosed in June, two days after helping Charlotte of the American Hockey League win the Calder Cup, had surgery to remove one testicle and has completed multiple courses of chemotherapy over the past two months.
"I'd like to thank everyone who reached out to offer support and well wishes since the diagnosis," Mattheos said in a statement released by the Hurricanes. "I've had amazing support from my friends, family, teammates, coaches and all of the hockey organizations I've been a part of, including the Hurricanes, Checkers and Brandon Wheat Kings.
"I owe a debt of gratitude to my surgeon, Dr. Sabeer Rehsia, and all of the staff at Grace Hospital, as well as Dr. Piotr Czaykowski at Cancer Care Manitoba and all of the nurses on the chemotherapy ward."
Chosen in the third round (No. 73) of the 2017 NHL Draft, Mattheos had 96 points (44 goals, 52 assists) in 65 games with Brandon of the Western Hockey League last season before joining Charlotte. He had three points (two goals, one assist) in 11 regular-season games and four points (three goals, one assist) in 14 playoff games with Charlotte.
