__ Room, Where Tennis Players Change Into Whites
Puzzle 11 of Tennis Medium Pack
Question is: __ Room, Where Tennis Players Change Into Whites
and the answer is: LOCKER
Word Meaning:
LOCKER — A type of storage compartment with a lock, usually used to store personal possessions for public use, such as in schools, railway stations, place of work, gyms, sports centers.
Definitions from Wiktionary.