Austria striker Guido Burgstaller fractured his skull when he was attacked in the center of the country's capital, his club Rapid Vienna said.

Rapid said the 35-year-old is expected to be out of action for several months after suffering a "serious head injury" at the weekend.

They say the former Cardiff City striker was attacked by an "unknown person" and suffered a fractured skull when he fell after a "brutal blow".

The 35-year-old, capped 26 times by Austria, was examined at the scene before being taken to hospital, where he will remain for the next few days.

In a statement, Rapid said it "trusts the responsible authorities that the as-yet-unknown perpetrator will be swiftly brought to justice".

Burgstaller joined Cardiff from Rapid in 2014, becoming Ole Gunnar Solskjaer's second signing for the Welsh club.

He made just three appearances for the Bluebirds before joining German club Nurnberg.

Bugstaller also played in Germany for Schalke and St Pauli before returning to Rapid in 2022.

He was one of three Austrian players dropped by manager Ralf Rangnick in 2023 after they were filmed singing homophobic chants following a 3-0 win against Austrian city rivals Vienna.