Aston Villa manager Gerard Houllier in hospital

Houllier took over at Aston Villa at the beginning of the season

Aston Villa manager Gerard Houllier has been admitted to hospital, the BBC understands.

It is thought the 63-year-old was taken to hospital in Birmingham overnight.

He is understood to have spoken to the club's chief executive Paul Faulkner and his condition is said to be comfortable.

Assistant manager Gary McAllister will take Thursday's training session. The club is expected to release an official statement later.

Houllier is expected to remain in hospital for a couple of days and it is anticipated McAllister will take charge of the team on Saturday for their game against Stoke at Villa Park.

Houllier had major surgery after suffering heart-related problems in 2001, whilst manager of Liverpool FC.