Iga Swiatek is knocked out of the WTA Finals after group rival Barbora Krejcikova beat Coco Gauff to secure her place in the semi-finals.

The Wimbledon champion defeated Coco Gauff to top the group, knocking out the defending champion Swiatek, and will play Zheng Qinwen on Friday.

Barbora Krejcikova grabbed the last semifinal spot at the WTA Finals with a 7-5, 6-4 win over Coco Gauff, a result that eliminated second-ranked Iga Swiatek from the season-ending tournament.