A fired-up Maria Sharapova strained her vocal chords to exhaustion as she fought off a stiff challenge from German Julia Goerges to advance to the fourth round of the Australian Open on Friday.
Pumping her fist and bellowing "c'mon!", the former world number one dug herself out of a first-set hole and survived a late match wobble before sealing the match 4-6 6-4 6-4 with a thumping serve in a shade under two and half hours.
The 2008 champion, Sharapova surrendered her serve in a bout of nerves after taking a 4-1 lead in the final set, but held on grimly to have a chance of raising her second title at Melbourne Park.
She will next play the winner of Venus Williams and Andrea Petkovic.