Can you believe it? Our 21st issue is here, with none other than future star Qinwen Zheng gracing the cover, photographed in San Diego by Sue Kwon. In this wintry issue, we muse on blazing sun, and visit remote Groote Eyelandt in Australia. We also meet the man who made tennis racquets modern, as well as a man who makes tennis racquets out of paper mache. We tackle Serena’s retirement, Racquet-style as well as implore—beg!—some of our favorite sportswear brands to embrace pro tennis. And, at long last, we are finally releasing our first ever tennis-themed crossword puzzle.