London, Oct. 12 -- Jos Buttler has vowed to return to full fitness with greater determination after undergoing surgery on his left hamstring, which he injured while batting during England's ODI series against Sri Lanka last month.

The 36-year-old sustained the injury during England's defeat in the second ODI at Headingley on September 24. He initially retired hurt before briefly returning to the crease.

Buttler had already been ruled out of England's upcoming tri-series in Pakistan, with the squad set to depart later this week. He is also likely to miss England's white-ball tour of Australia in November, with the squad for the series scheduled to be announced on Tuesday morning.

Buttler revealed in an Instagram post on Monday that he h...