Juventus began the season with a 3-0 win over third division Martina Franca in the Italian Cup first round.
Morocco's Jaouad Gharib became only the second athlete to retain the marathon title at the world championships.
Australia's Lleyton Hewitt delighted his home fans when he battled to a typically gutsy 6-1, 4-6, 6-3 victory over Swiss top seed Roger Federer in the Brisbane International final on Sunday.
Kieron Pollard scripted Mumbai Indian's sensational four-wicket win over Royal Challengers Bangalore with a blistering 70-run knock which overshadowed Samuel Badree's hat-trick in an Indian Premier League game, in Bengaluru, on Friday.
Images from Day 2 of the Australian Open in Melbourne on Tuesday
World No 1 Serena Williams showed plenty of rust in her first competitive outing of the year ahead of the Australian Open, but battled through to defeat Andrea Petkovic in straight sets at the Brisbane International on Tuesday.