A middleweight bout between Arizona Combat Sports fighter Steve Steinbeiss and UFC veteran Ryan Jensen has been canceled for Wednesday night's UFC Fight Night 18, as confirmed by UFC.com
UFC officials said the fight was off "due to a medical approval issue regarding Jensen."
Independent sources have confirmed to MMAWeekly.com that the alleged medical issue stems from Jensen's use of Adderall, which is not allowed under standard athletic commission rules.
A similar situation to this happened at "The Ultimate Fighter 7" season finale when Tim Credeur admitted to using the same drug, Adderall, and the Nevada State Athletic Commission canceled his scheduled bout against Cale Yarbrough in much the same manner.
I had him as a favorite in this fight too. What a stupid thing to do, he knew it was illegal, huge missed opportunity here.