Did Andy Murray's fiancee call Tomas Berdych a 'Czech flash f**k' during match (VIDEO)

Things got a little testy during Andy Murray's Australian Open semi-final victory against Tomas Berdych after Murray's fiancee appeared to fire an expletive-ridden blast towards her man's opponent during a heated match.

After Murray won a grueling baseline rally in the first set to claim a break back, his bride-to-be, Kim Sears, was caught on camera apparently mouthing "F***** have that you Czech flash f**k" at Berdych.

“@BenRothenberg: Forget how big the diamond is; THIS is what true love is made of. #ausopen https://t.co/jETjH7CunD” f****** hilarious!
— Anne Keothavong (@annekeothavong) January 29, 2015

The potty-mouthed comment was just part of a series of heated moments during Murray's marathon 6-7 (6-8), 6-0, 6-3, 7-5 win against Berdych on Thursday.

Berdych was clearly incensed at losing the point, and gave Murray a long stare as both players walked back to their chairs.

As Murray sat down, he pumped his fist towards his own box, to which Sears responded with a fist pump of her own before letting loose with the f-bombs as she glanced over towards Berdych's team.

Moments later, Berdych complained to umpire Pascal Maria about the quality of the tennis balls, to which Murray responded: "He always does this."

Murray went on to close out the match and clinch a spot in the final and the handshake between the pair at the net after was surprisingly civil after all the naughtiness.

And love is a four-lettered word too.

Australian Open ballboy takes 121-mph serve to nuts (VIDEO)

Balls have been in the headlines a lot lately — whether under-inflated in New England or blown-up on Justin Bieber. But here is one guy who's making ball news for a public — and painful — reason.

This poor Australian Open ballboy ended up on the receiving end of a 121-mph serve from Spain's Feliciano Lopez that hit him directly in the man-zone.

Even Lopez, ranked No. 14 in the world, knew the power of his serve and had a look of real concern as the ballboy dropped to one knee. 

This ball boy just got hit in the groin by a 196 km/h serve at the Australian Open! https://t.co/meN2f0pVqN
— TheLADbible Writers (@TLBWriters) January 22, 2015

After a collective groan of "Ohhh" from the seats, both players came over to check on him before he left the court to a round of applause — especially from all of the sympathetic men in the stands.

Djokovic ousted by Wawrinka at Australian Open in another 5-set thriller

Stanislas Wawrinka ousted three-time defending Australian Open champion Novak Djokovic 2-6, 6-4, 6-2, 3-6, 9-7 in the quarterfinals on Tuesday — after another grueling five-set match in their growing rivalry.

Wawrinka (No. 8) beat the world No. 2 for only the third time in 18 matches and ended Djokovic’s streak of 14 Grand Slam semifinals. The 28-year-old Swiss also exacted revenge for losses to Djokovic in the 2013 Australian Open where — a year ago — Djokovic prevailed over Wawrinka in a fourth-round match that ended 12-10 in the fifth set and went an exhausting 5 hours, 2 minutes. Their semifinal match at the US Open in September was another max-distance five-setter but was only a modest 4 hours, 9 minutes long.

Bidding for his fifth title Down Under, Djokovic lost for the first time since the U.S. Open final. He entered Tuesday with a 28-match winning streak and 13 victories in a row against top-10 opponents.

Wawrinka will face Tomas Berdych next, the first semifinal appearance here for both men. Berdych defeated David Ferrer earlier Tuesday.

#Wawrinka through to the #ausopen semis 2-6 6-4 6-2 3-6 9-7 v #Djokovic pic.twitter.com/hkDboRxemr
— Australian Open (@AustralianOpen) January 21, 2014

Caroline Wozniacki's engagement ring is the size of a Titleist (PHOTO)

Caroline Wozniacki flew to Abu Dhabi on Sunday to watch her fiance Rory McIlroy finish second at the Abu Dhabi Championship. Wozniacki lost to Garbine Muguruza of Spain in the Australian Open which freed up her schedule to watch some golf.

McIlroy proposed over New Year's and by the looks of it, was thinking about golf balls when he picked out the diamond.

Good thing he wasn't concentrating on tennis.

McIlroy lost by one to Pablo Larrazabal after receiving a two-stroke penalty on Saturday evening.

But at least Wozniacki went home with a trophy.

[CBS Sports]