United Kingdom, May 31 -- Sir Rod Stewart has cancelled two Las Vegas concerts at the last minute after being advised by doctors to rest his voice while recovering from a sinus infection.

The rocker, 81, had been scheduled to perform at The Colosseum at Caesars Palace on 29 and 30 May as part of his long-running Las Vegas residency, but both performances were cancelled shortly before showtime - forcing disappointed fans to abandon plans just hours before Rod was due on stage.

A representative for the singer confirmed the decision had been taken on medical advice, although Rod is expected to resume performances from 2 June.

Rod said: "My apologies to my family of fans. I am on vocal rest as I recover from a sinus infection. I look forwa...