If you're a #tennis juggernaut like @samquerrey, even a trip to the #beach is no time to slack on your #workouts. But this way, #circuittraining doesn't look half so bad. Is he perhaps #training for the @daviscuptennis happening Feb 3-5 in Birmingham, AL? Only time will tell. #USTA 📽: @teamusatennis #TeamUSATennis _ #SamQuerrey #BeachWorkOut #Exercise #DavisCup #BreakaSweat #TennisPlayer #BeachLife #Workout #Tennis