The grunt - a natural sound or tactical?04:14SBS News In DepthFollow and SubscribeFollow and SubscribeFollow and Subscribe Apple Podcasts Spotify Listnr Download (1.94MB)Download the SBS Audio appAvailable on iOS and AndroidMaria Sharapova of Russia in action on day two of the Australian Open tennis tournament, in Melbourne, Tuesday, January 16, 2018. Source: AAPCan grunting unfairly enhance the performance of a tennis player?Follow and Subscribe Apple Podcasts Spotify Listnr Download (1.94MB)Download the SBS Audio appAvailable on iOS and AndroidPublished 18 January 2018 5:12pmSource: SBSSkip to podcast episode contentShare this with family and friendsCopy linkShareCan grunting unfairly enhance the performance of a tennis player?ShareLatest podcast episodes06:58Iran suggests Strait of Hormuz deal is closepodcast episode6 minutes 58 seconds06:55ASX closes at fresh record high, as tech and mining stocks rallypodcast episode6 minutes 55 seconds07:30European Union defends Spain's handling of Ceuta migrant crisispodcast episode7 minutes 30 seconds07:22INTERVIEW: You think you've got the flu? What should you do?podcast episode7 minutes 22 seconds