Wimbledon champion Linda Noskova dismantled Coco Gauff to become the first player to reach the last four of the WTA Finals.

Czech Noskova played with controlled aggression and served brilliantly to beat the American 6-3 6-3.

World number eight Noskova was composed throughout and broke Gauff's serve four times in the first set alone.

She sent powerful winners to all corners to outmuscle her opponent, who is one of the best movers on the WTA Tour, and committed only one unforced error in a dominant second set.

The 21-year-old fittingly sealed victory with an ace to secure a place in the semi-finals on her tournament debut.

"Thank you guys for the cheers I'm getting now - but it was a little weaker in the match, guys, I'm not going to lie," Noskova joked to the California crowd afterwards.

"I feel like I stayed in the match through every moment, from beginning to end."

It is a sixth top-10 victory of the season for Noskova, who won her maiden Grand Slam at Wimbledon in July.

Gauff, who won a thriller…