Sylvester Stallone was 'doubtful' about Grudge Match

Sylvester Stallone has revealed that he was very doubtful about his latest film 'Grudge Match'.

The 67-year-old American actor has admitted that he wasn't convinced when he was first offered a role in the "absurd" boxing comedy and added that he had no intention of doing it, the Daily Express reported.

In the film, the 'Rocky' star is seen getting in the ring and taking on Robert De Niro.