Australia's Cummins & Lyon out of rest of Ashes

Australia captain Pat Cummins and spinner Nathan Lyon will miss the remainder of the Ashes series, including the Boxing Day Test against England in Melbourne. Cummins is resting after rushing his return from a back injury, while Lyon had surgery on a hamstring injury. In their absence, Steve Smith leads the team, with Todd Murphy stepping in for Lyon and Jhye Richardson replacing Cummins. Australia, with a 3-0 series lead, aims for a 5-0 sweep in the upcoming fourth Test.