LONDON, July 7 (Reuters) - ⁠Karolina Muchova overcame four-times Grand Slam ⁠champion Naomi Osaka of Japan 7-6(4) ‌6-4 in an absorbing contest of athleticism, shot variety and tight margins on Tuesday to set up ​a Wimbledon semi-final against ⁠American Coco Gauff.

The 29-year-old ⁠Czech, seeking a first Grand Slam title, ⁠proved ‌the steadier player on a sizzling Court One, producing 21 unforced ⁠errors to Osaka's 42 while the ​pair sent ‌down 24 winners apiece.

Not afraid to come ⁠to ​the net and volley, Muchova took the first set tiebreak with a forehand winner ⁠on her third set point.

Osaka, ​28 and seeded 14th, had downed top seed Aryna Sabalenka in the fourth round. But ⁠consistency deserted her as she served two double faults alongside two aces in the ninth game of the second set ​and missed a drive ⁠volley to drop her serve.

Tenth seed Muchova served ​out the set, finishing ‌with an ace, to ​reach her first Wimbledon semi-final.

(Reporting by Clare Lovell, editing by Pritha Sarkar)