British number three Dan Evans has announced he tested positive for cocaine in a drugs test taken in April according to report from the BBC.
The 27-year-old, who has played for Britain in the Davis Cup, learned of the failed test earlier this week and said he had “let a lot of people down”.
The world number 50 said: “I made a mistake and I must face up to it,”.
A player can be banned for up to four years for an anti-doping violation, according to International Tennis Federation (ITF) rules.
The ITF said Evans provided the positive sample at the Barcelona Open on 24 April and he will be provisionally suspended from 26 June.
“It’s really important you know this was taken out of competition and in a context completely unrelated to tennis,” said Evans, from Birmingham.
“I do not condone for one second to anyone that this is acceptable behaviour the BBC report.
“I have let a lot of people down – my family, my coach, my team, sponsors, British Tennis and my fans. I can only deeply apologise from the bottom of my heart.
“This has been a sad and humbling experience the British told BBC.