British number one Johanna Konta reached just her second WTA semi-final of the year by beating Aliaksandra Sasnovich in three sets at the Kremlin Cup in Moscow.
Both players had chances in a tight decider before Konta prevailed 6-2 2-6 7-6 (7-2) against the world number 31.
The victory takes Konta, who has dropped to 44th in the world rankings, into her first semi-final since June.
She will play Russian sixth seed Daria Kasatkina in the last four.
Konta, 27, split with her coach Michael Joyce last week and is working with Dimitri Zavialoff, a former coach of Stan Wawrinka, on a trial basis in Moscow.
She earned an impressive win over world number 16 Elise Mertens in the opening round and followed that by beating Daria Gavrilova in round two.
