Retired Calgary Stampeders offensive lineman Dan Federkeil explained the results of his off-season drug test, saying he waited until retirement to deal with a medical issue that would lead to a positive test.

"I have been dealing with a medical issue for two years but the nature of the condition allowed me to postpone treatment because I fully realized the medically prescribed drug was not compatible with the CFL/CFLPA drug policy," Federkeil said in a team statement. "It was only after the 2017 season was over and after I had made the decision to retire that I began the treatment process."

"The football team was aware of Dan's situation from the outset and we appreciate him putting his personal comfort on hold so that he could continue to play for us while remaining in compliance with the drug policy," Stampeders president and GM John Hufnagel said in the statement. "We thank Dan once more for his contributions during his five seasons with the Stampeders and wish him health and success in the post-football portion of his life."

Federkeil played five seasons with the Stampeders, lining up at right tackle for 59 regular season games, four playoff games, and three Grey Cups, including the team's championship in 2014.