Sam Allardyce has accused West Ham United's owners of being "ungrateful" after he parted company with the club at the end of last season.

Despite leading the Hammers to a safe 12th-place finish after spending much of the campaign in the top half of the table, the 60-year-old ended his four-year spell at Upton Park after the club decided against offering him an extension.

Allardyce believes that he was treated unfairly by co-owners David Sullivan and David Gold, who replaced him with Slaven Bilic in the summer, and he doubts that his successor will be able to lead the team to Europa League football in his first year.

"'The West Ham Way' is obviously not winning every week, like I tried to do," he told beIN Sports. "I did everything they asked for and they wanted more, and I found that extremely ungrateful in terms of what I'd done for them.

"If David Sullivan and David Gold have told Slaven Bilic that they expect to get into Europe this year then I think it's way beyond the capabilities of the squad at this moment in time.

"I told them that. Perhaps that's one of the reasons why they didn't renew my contract in the end."

Allardyce never finished below 13th in his three Premier League seasons with West Ham.