Paul Collingwood to undergo knee surgery after World Cup

To prolong his international career, Paul Collingwood will undergo knee surgery immediately after England's World Cup campaign ends.

The all-rounder, who has already announced his retirement from Test cricket at the end of the Ashes series, has struggled for form and fitness in this World Cup.

Collingwood has not ruled out battling through the pain barrier if England needs him in the knockout stages, and added that he cannot go on much longer without going under the knife.

The knee injury, which has seen him limited to just four matches during England's campaign and saw him dropped for the games against South Africa and West Indies, has compromised his mobility when bowling and fielding, the Daily Express reports.

Collingwood, who signed with the Rajasthan Royals in a three-year deal for 150,000 pounds in January this year, was set to join up for their first match on April 9.

However, surgery could delay his availability for his franchise.