Former Springbok Rugby player Dale Santon continues to recover in hospital after being injured in a petrol bomb attack on his Plumstead home in Cape Town.

Police said an eyewitness saw a person hurl a petrol bomb into Santon's house at the weekend.

The ex-rugby player sustained serious burns to his face and arms while he tried to extinguish the blaze.

The police's Keith Chandler said detectives were investigating the motive behind the attack.

Chandler added Santon was in a stable condition in hospital.

"Santon saw his couch on fire and tried to push it to the entrance hall, but it got jammed in the front and sustained burns to his forearms, hands and face," said Chandler.

Eyewitness News