Heat, tiebreaks and Serena spice up Australian Open

The year's first Grand Slam at Melbourne Park which starts on Monday features a number of innovations, including a new extreme heat policy and final set tiebreaks. Familiar names, however, are tipped to take off with the winners' trophies. The following is a list of talking points at the Australian Open:

from Reuters: Sports News https://reut.rs/2TKoFci