Neither the blistering heat nor age disadvantage could keep Serena Williams from tearing down rival Maria Sharapova for the 18th time in a row at Melbourne Park on Monday.

In a match that lasted an hour and a half, Williams proved her supremacy in the game of tennis yet one more time. At present the defending champion and chasing her 22nd Grand Slam title, the 34-year-old American defeated Sharapova in straight sets 6-4, 6-1, to proceed to the last four matches of the tournament. Williams will now face fourth seed Agnieszka Radwanska, who will definitely be the underdog in their face-off, having lost all of their eight previous matches.

Maria Sharapova, former World No. 1, is now at fifth position. The 28-year-old Russian fended off the seemingly invincible Williams admirably for the first hour of the match, but then had to buckle under the sheer power of Serena’s game. It’s been a long 12 years since she has won against Williams.

For Williams, too, the first half of the match was a bit rough. She stumbled at the end of the first set, but then regained composure in the second, winning 12 games out of 15. She was all praise for Sharapova calling her “an incredibly intense and focused player”.

With this victory under her belt, Serena Williams is now closing in on a 7th Australian Open title, an achievement which pundits are already predicting as hers.