Galle, Jan. 29 -- Stand-in captain Steven Smith joined the elite 10,000-run club in Test cricket with a commanding century, while Usman Khawaja's unbeaten 147 put Australia in a dominant position on the opening day of the first Test against Sri Lanka at the Galle International Stadium. At stumps, Australia were 330 for 2 in 81.1 overs, with Smith (104*) and Khawaja forging an unbroken 195-run partnership for the third wicket after Travis Head set the tone with a brisk 57. Rain brought an early end to proceedings, but not before the visitors had stamped their authority on the contest. Winning the toss and opting to bat, Smith's decision was vindicated as Australia adopted an aggressive approach against Sri Lanka's spin-heavy attack. Head, pr...