McGrath, 36, who has taken more Test wickets (542) than any other fast bowler, withdrew from Australia's tri-series match against South Africa in Melbourne last Friday to return to Sydney to be with his wife.

His immediate availability is undecided as he assists his wife, Jane, during her cancer treatment.

Lewis returns to the Australian squad after making his debut in the Chappell-Hadlee series in New Zealand late last year.

"As we said last week, selectors are prepared to give Glenn as much time as he needs at this very difficult time," Chairman of selectors Trevor Hohns said in a statement Tuesday.

McGrath has stated he has no intention of retiring from international cricket.

Australia will play either Sri Lanka or South Africa in the finals, with the opening match getting under way in Adelaide on Friday.

SQUAD
Ricky Ponting (captain), Adam Gilchrist, Nathan Bracken, Stuart Clark, Michael Clarke, Brett Dorey, Brad Hogg, James Hopes, Michael Hussey, Simon Katich, Brett Lee, Michael Lewis, Damien Martyn, Andrew Symonds.