What better day than Christmas Day to enjoy one of the funniest videos of all time?
Back in 2010 when Roger Federer and Rafael Nadal were at the height of their careers, they starred in this hilarious Christmas video.
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The tennis legends were trying to promote their upcoming exhibition match for the Roger Federer Foundation, with the Swiss Maestro asking Rafa: "So what are you going to get me for Christmas?"
It seemed like a fairly straightforward question in which Rafa was supposed to say he was going to travel to Switzerland to take part in the match.
However what transpired will live long in the memories of anyone even remotely taken by the incredible Federer-Nadal rivalry.
As you can see in the video above, Federer simply cannot keep a straight face as Nadal attempts to answer his question.
The 19-time grand slam champion bursts into laughter every time Rafa opens his mouth, sparking even more laughter from Nadal.
Despite the video being seven years old, fans are still completely in love with it.
After struggling with injuries last year, Federer and Nadal have enjoyed a remarkable resurgence over the past 12 months – sharing the four grand slams between them.
Federer finished 2017 with 52 wins from 57 matches, while Nadal ended the year as World No.1 for the first time since 2013.
Nadal – who won the French and US Opens – racked up an impressive 67 victories, before knee problems hampered his progress at the ATP Finals.
However Nadal is among some of the game's biggest names racing the clock to make the Australian Open start line as the world's tennis elite prepare to joust for a record $60 million summer purse.
While 36-year-old Federer should arrive refreshed and ready for his Open title defence after a soothing family holiday, many of his chief rivals remain under serious fitness clouds.
After pulling the pin one match into his World Tour Finals campaign in London last month, world No.1 Nadal continues to battle a worrying knee injury.
The Spaniard's prospects of landing back-to-back majors for the first time since 2010 don't look good after the battered baseliner's decision to cancel a five-day training camp in Majorca last week.
Nadal was scheduled to sweat it out with Joao Sousa but reportedly told the Portuguese he "still isn't ready to practice".
"He called me to tell me he was not feeling well," Sousa was quoted as saying.
Nadal was scheduled to face either Kevin Anderson or Pablo Carreno Busta on Friday at the Mubadala World Tennis Championship in Abu Dhabi but has withdrawn from that event.
He will have played just one competitive match in almost two months by the time he lobs as top seed at the Brisbane International starting on New Year's Eve.