'Swann to quit international cricket'
England's Graeme Swann bats against Australia during the last day of the second Ashes cricket Test match in Adelaide on December 9, 2013
Swann was expected to call a press conference in Melbourne later Sunday to make the announcement, just days before the fourth Ashes Test against Australia.
The bombshell development comes a week after England lost the Ashes to Australia, who took an unassailable 3-0 series lead with two Tests to play.
Off-spinner Swann, 34, has been under pressure to keep his place in the England team after taking seven wickets at an average of 80.00 in the three Tests.
Swann was hit for 22 runs in one over by Shane Watson in the third Test in Perth.
Swann is widely regarded as the premier spinner in world cricket, with 255 wickets at 29.96 in his 60 Tests.