The fourth round of the 2016 BNP Paribas Open completed on Tuesday, setting up four cracking quarter-final pairings.
Two of the matches in the round of the last eight will be rematches of the last two WTA Finals in Singapore final matches as Serena Williams will be meeting Simona Halep while Petra Kvitova will face off with Agnieszka Radwanska.
Halep had the easiest road into the QF, having to play one a single set on Tuesday as her opponent Barbora Strycova retired with an illness halfway through the match.