Serena makes light work of Tatjana Maria, winning 6-0, 6-2 in 49 minutes. Men"s No. 1 Djokovic also wins in straight sets on the Rod Laver Arena. MELBOURNE: This was quite a return for Serena Williams. Almost as if she never left. In her first match at the Australian Open since winning the 2017 title while pregnant — and her first official match anywhere since a loss in the chaotic US Open final last September — Williams looked to be at her dominant best, overpowering Tatjana Maria 6-0, 6-2 in the first round on Tuesday. “I kind of like to jump in the deep end and swim,” Williams said after the 49-minute match, ”and see what happens.” She had not dipped her toe in Grand Slam waters since New York, where everything devolved after Williams was warned for getting coaching, then docked a point for breaking a racket and eventually docked a game for calling the chair umpire “a thief” during the final. When that match was mentioned by a reporter during Williams’ news conference on Tuesday, as part of a question about whether coaching should be allowed during matches at majors, she replied, “I, like, literally have no comment.” Truth be told, the match against Maria was not much of a test for Williams, given that the 74th-ranked German entered with an 11-15 record in first-round matches at Grand Slam tournaments, only once has made it as far as the third round at any major and owns a total of one career WTA title after a dozen years on the tour. Williams, meanwhile, is pursuing an eighth title in Melbourne and 24th Slam singles trophy overall, which would equal Margaret Court — whose career spanned the amateur and professional eras — for the most in tennis history. “I have been going for the record (for) what seems like forever now,” the 37-year-old Williams said, “so it doesn’t feel any different.” Other seeded winners in a busy Tuesday included No. 4 Naomi Osaka, No. 7 Karolina Pliskova, No. 12 Elize Mertens, No. 13 Anastasija Sevastova, No. 17 Madison Keys and No. 18 Garbine Muguruza among the women, plus No. 4 Alexander Zverev, No. 8 Kei Nishikori, No. 11 Borna Coric and No. 12 Fabio Fognini among the men. Both Nishikori, who had dropped the opening two sets against qualifier Kamil Majchrzak, and Fognini advanced when their opponents retired mid-match. French Open finalist Dominic Thiem went the distance against Benoit Paire before wrapping up a 6-4, 6-3, 5-7, 1-6, 6-3 win just after 2 am. Williams’ older sister, Venus, is unseeded at a major for the first time in five years and she was a game from a first-round exit before coming all the way back to eliminate 25th-seeded Mihaela Buzarnescu 6-7, 7-6, 6-2. She is a seven-time major champion and a two-time runner-up in Australia but is currently ranked only 36th. The tournament’s two No. 1 seeds, Novak Djokovic and Simona Halep, played at night and both won — although in contrasting fashion. Djokovic eliminated Mitchell Krueger of the US 6-3, 6-2, 6-2, while Halep trailed by a set and a break before coming back to beat Kaia Kanepi 6-7, 6-4, 6-2 and avoid becoming the first top-seeded woman in 40 years to lose her opening match at the Australian Open. Krueger was part of a rough day for American men, who went 1-5 Tuesday; Ryan Harrison had the lone victory.