But it appears his foul mouth has rubbed off on fiancé Kim Sears.
Watching on as Murray won through to his fourth Australian Open final after overcoming Tomas Berdych on Thursday night, Sears was caught on camera swearing like a sailor and, predictably, it took social media by storm.
Now, we here at Sportal are pretty good at reading lips and it would seem we're not alone.
Twitter blew up trying to guess what Sears uttered, and they seem to be pretty spot on.
Watching on as Murray won through to his fourth Australian Open final after overcoming Tomas Berdych on Thursday night, Sears was caught on camera swearing like a sailor and, predictably, it took social media by storm.
Now, we here at Sportal are pretty good at reading lips and it would seem we're not alone.
Twitter blew up trying to guess what Sears uttered, and they seem to be pretty spot on.
Vote a or b for 'What Did Kim Sears say? a) "F****** have that you Czech f****** f***" OR b) "F****** have that you s*** flash f***"?
— Joe Krishnan (@joekrishnan) January 29, 2015@AndyBizarre I reckon f****** have that you Czech f****** f***
— Peter Law (@PeterJohnLaw) January 29, 2015