Samir Nasri will be banned for six months after breaking Uefa's Anti-Doping Regulations during the 2016-2017 season by visiting a Los Angeles intravenous therapy clinic.
The French former Arsenal and Manchester City player avoided a possible four year ban.
Nasri was the subject of a Spanish Anti-Doping Agency (Aepsad) investigation after a tweet posted by the Los Angeles clinic 'Drip Doctors' revealed that the then Sevilla player, on loan from City, had received its "concierge Immunity IV Drip" (saline fluid) in December 2016. The news broke in bizarre fashion when the 'Drip Doctors' account tweeted about Nasri's attendance, which led to a series of explicit and swiftly-deleted tweets from Nasri's account. Nasri later explained that he was hacked.
Nasri would have needed a Therapeutic Use Exemption (TUE) to be exempt from the regulation.
Nasri was said to be close to joining Spanish side Las Palmas after his contract at Turkish club Antalyaspor was terminated by mutual agreement, but the ban will mean the 30-year-old will be unable to join any European club.