Miami, FL, USA, 28 March 2017 | AAP

Sam Stosur’s best WTA tournament performance so far this year has ended with a three-set loss to world No.5 Simona Halep in Miami.

Stosur broke the Romanian third-seed twice to win the first set of their fourth round clash at the Miami Open, before charging to within a point of an upset victory with a 5-3 lead in the second.

.@BamBamSam30 reels off FOUR straight games to take the opening set 6-4! #MiamiOpen pic.twitter.com/Bxxr19jcj0

— WTA (@WTA) March 28, 2017

But Halep rallied to take the next seven games before running away a 4-6 7-5 6-2 winner over the No.19-ranked Stosur.

Comeback Complete✔️@Simona_Halep saves a MATCH POINT to edge Stosur 4-6, 7-5, 6-2! #MiamiOpen pic.twitter.com/0qeasy9VQ4

— WTA (@WTA) March 28, 2017

Stosur’s next scheduled event is the Volvo Car Open in Charleston, USA beginning 3 April.