News Spokane Photo: Water sport Fri., Oct. 18, 2013 The exercise racket: Max Mahl, a 9-year-old golden retriever, runs toward the waters of Newman Lake as his owner, Duke, hits a tennis ball for him. (Tyler Tjomsland) Buy this photo Twitter Email Reddit SMS The exercise racket: Max Mahl, a 9-year-old golden retriever, runs toward the waters of Newman Lake as his owner, Duke, hits a tennis ball for him on Thursday.