Police have extended Sunderland winger Adam Johnson's bail until April 23 as they continue their investigation into allegations that he had sex with a girl under the age of 16.

The 27-year-old England international was arrested by Durham Police at the start of the month.

Sunderland are back in action on Saturday when they travel to West Ham United in the Premier League.

The Black Cats, who are battling against relegation, appointed Dick Advocaat as their new manager on Tuesday following the sacking of Gus Poyet.