MELBOURNE — Day two at the Australian Open saw an impressive Serena Williams, a terrific display from the Canadian contingent and the continued descent of a former top-10 American. Here are five thoughts from the second day of action Down Under.
• No one wipes a hard drive clean quite like Serena Williams does. She’ll lose desultorily one week and run the table the next. She’ll play a lousy set and then decline to miss a ball. Last time we saw her, she, lamentably, played a starring role at the thermonuclear 2018 U.S. Open final. She didn’t play a match the rest of the year and didn’t address a controversy that echoed worldwide, bringing in everyone from J.