London: Manchester United star Ryan Giggs is in the midst of an off-field controversy yet again, after an alleged extra-marital affair with his sister-in-law was revealed.
The Manchester United star had an eight-year relationship with his younger brother Rhodri's wife, Natasha, according to reports in The News Of The World.
There are claims that the footballer spent the night of April 9 with Natasha and that the affair continued while his wife Stacey was pregnant.
The two apparently met first in 2003 at a Manchester nightclub when Giggs was engaged to future wife Stacey.
A friend revealed that Natasha told her: "I knew it was wrong. It's the worst possible betrayal. I tried to end it but my relationship with Ryan was like an addiction. Anything he said, I did, I couldn't say no.
"Ryan was never romantic with me. It was all about sex."
This report follows weeks after controversy about Giggs' affair with former Miss Wales Imogen Thomas and the subsequent injunction row that caused a media stir and Twitter frenzy. Liberal Democrat MP John Hemmings had used parliamentary privilege to name the player, saying 75,000 people had already outed him on Twitter