Live updates: Australian Open tennis, day one at Melbourne Park
ROD LAVER ARENA Naomi Osaka (3) defeated Marie Bouzkova 6-2 6-4Serena Williams (8) defeated Anastasia Potapova 6-0 6-3Roger Federer (3) vs Steve JohnsonAsh Barty (1) vs Lesia TsurenkoNovak Djokovic…
