London Skolars player Sebastian Kolasa has been suspended for 15 months after being found guilty of evading an out-of-competition drugs test.
Kolasa, who has made one substitute appearance for the club, did not attend a doping test last August.
The ban has been backdated to the start of September, 2013.
Club CEO Hector McNeil told the club website: “The club views this whole episode extremely seriously and, like the sport as a whole, we take a strong anti-doping stance.
“The National Anti-Doping Panel that heard the case acknowledged that Sebastian did not commit any anti-doping rule violation involving use of a banned substance, and in fact two days later provided a negative test, but evading a test is a serious offence which is recognised in the severity of the sentence.
“Sebastian is a promising youngster, who realises he has made a serious error of judgement and is full of remorse.
“He pleaded guilty to the charge and cooperated fully with UK Anti-Doping, for which he deserves credit.”