Sydney, Jan. 6 -- An excellent session for Australia as captain Steve Smith's unbeaten hundred put them in a dominant position in the fifth and final Ashes Test against England at the Sydney Cricket Ground in Sydney on Tuesday.

At stumps on Day 3, Australia were at 518/7 in 124 overs in response to England's first innings score of 384. The hosts have a lead of 134 runs with Smith (129* off 205 balls, including 15 fours and one six) and Beau Webster (42* off 58 deliveries, with the help of four boundaries) unbeaten at the crease.

Australia started their session at 377/6 in 91 overs. Cameron Green (8 off 13 balls, with the help of one four) and Smith (65 off 115 deliveries, including nine fours) were unbeaten at the crease.

The hosts cro...