__ Shoes, Footwear Worn by Federer and Nadal
Puzzle 11 of Footwear Medium Pack
Question is: __ Shoes, Footwear Worn by Federer and Nadal
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.