Injury-prone Australian paceman Pat Cummins has been ruled out of Sunday`s crunch World Cup game with Sri Lanka, captain Michael Clarke said Saturday.
Clarke said Cummins would not be fit enough for the game at the Sydney Cricket Ground after suffering a side strain during Australia`s dramatic one-wicket loss to New Zealand in Auckland last weekend.
Cummins, who has played little in the last three Australian seasons with lower back stress fractures, also sat out Australia`s 275-run win over Afghanistan in Perth on Wednesday.
The rising fast bowler burst into top-level cricket with a remarkable Test debut in 2011.
He won man-of-the-match honours against South Africa in Johannesburg, which included claiming 6-79 in the second innings and hitting the winning runs in a narrow Australian victory.
He was also sent home from Australia`s one-day tour of England in 2012 with a side strain.
But the prognosis was more positive for all-rounder Mitch Marsh, who trained at the SCG on Saturday.
"He had some foot pain. He told me on the field it was his boot," Clarke said.
"But as you`ve seen today, he`s batted, bowled and done his fielding.
"I asked him how he was feeling when I walked off from my first bat and he said he`s flying and ready to go."
National selectors have yet to finalise a side for the all-important game which is expected to decide who finishes second in Pool A behind New Zealand.
"Selectors are going to wait until tomorrow before they pick the XI," Clarke told reporters.
"I`d imagine it`s to see what the wicket is like tomorrow."
The winner of Sunday`s match will also avoid a likely quarter-final against South Africa and potential semi-final against New Zealand in Auckland.