Martina Hingis' Sport

This page is the CodyCross answer for the clue below from Casino, Group 271, Puzzle 4 (Parimutuel Betting).

Question is: Martina Hingis' Sport

and the answer is: TENNIS

Word Meaning:

TENNIS — (sports) A sport played by two players (or four in doubles), who alternately strike the ball over a net using racquets.

Definitions from Wiktionary.