Robert Helenius has returned an ‘adverse analytical finding’ in a VADA drugs test taken the day before his defeat to Anthony Joshua.
The Finn was a late stand-in for Dillian Whyte, who was ruled out of the fight for the same findings from VADA, the Voluntary Anti-Doping Association.
Helenius went on to lose to Joshua, who knocked him out in the seventh round of their heavyweight clash at the O2 Arena in London on August 12.
In a statement, Matchroom Boxing said: “Today, the Voluntary Anti-Doping Association (VADA) has informed Matchroom and the British Boxing Board of Control that Robert Helenius has returned an adverse analytical finding as part of a random anti-doping protocol.
“Helenius was voluntarily tested on Friday, 11 August before the heavyweight fighter’s defeat by Anthony Joshua in London on Saturday, 12 August. The result was made known to Matchroom today.
“Matchroom defers to the relevant regulatory authorities on next steps. We vehemently continue to support voluntary anti-doping testing. We are committed to promoting a clean and fair sport for all athletes.
“We will not be making any further comment.”