Here are the important things to know about Jon Jones ’ most recent brush with the U.S. Anti-Doping Agency, which concluded a 15-month suspension handed down to him Wednesday night: The day before his UFC light heavyweight title rematch with current champion Daniel Cormier at UFC 214, Jones submitted a urine sample that was later found to contain a steroid metabolite, which would prove to be enough to get his knockout victory in the fight changed to a no-contest. Jones and his management insisted they had no idea how the metabolite got into his system, but they didn’t dispute the result of the test. This marked a major point of difference from the last time he tested positive for a prohibited substance before UFC 200 in July 2016, when Jones and his team said they knew exactly how it got there (tainted sexual enhancement pills) but argued that it wasn’t really his fault. After more than a year with no official decision on a final punishment, Jones’ case went to arbitration this month.
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