Sevilla midfielder Samir Nasri is under investigation by Spain's anti-doping agency over a treatment he received at a clinic in the US, according to El Pais .
The former Arsenal and Manchester City star caused a scene on Twitter on Tuesday night when he was hacked by someone who claimed he had been offered "sexual services" by a woman working at a Los Angeles clinic he'd visited.
After 20 minutes of the bizarre tweets, the 'real' Nasri then proceeded to explain he'd been hacked. But the 29-year-old didn't change his password at first, leading to a surreal situation where his hacker was arguing with him on his own Twitter timeline.