The US presidential campaign may be a deadly serious affair, but Americans have taken to social networks to lighten the mood with a good dose of humor and sarcasm. Here are our top 10:

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Novak Djokovic has sewn up the end of year ATP top spot after elbowing Roger Federer off top spot in the rankings published Monday.

Djokovic moved back into pole position after losing out to Federer

Luis Suarez's 11th goal of the season earned Liverpool a 1-1 draw with Newcastle in the Premier League at Anfield on Sunday.

The hosts' point was the result of an impressive second half recovery insp

Tennis great Roger Federer is in no doubt that Novak Djokovic deserves to finish 2012 as the world's top-ranked player.

Federer replaced Djokovic at the sop of the standings after winning Wimbledon i

Republican challenger Mitt Romney will make a last-minute play for Pennsylvania Sunday as he and President Barack Obama criss-cross America in a final push for votes on the penultimate day of their te

Key Australian allrounder Shane Watson has been ruled out of this week's first Brisbane Test against South Africa, with Rob Quiney called up as his replacement, Cricket Australia said on Monday.

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South Africa will be looking to play leg-spinner Imran Tahir and opt against playing four specialist pace bowlers in Friday's opening Test against Australia, a team coach said on Monday.

Tahir proved

After a grueling 18-month battle, the final US campaign day arrived Monday for President Barack Obama and rival Mitt Romney, two men on a collision course for the world's top job.

South Korea was forced to shut down two nuclear reactors Monday to replace components that had not been properly vetted, a minister said, warning of "unprecedented" power shortages to follow.

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American Stacy Lewis hit a sizzling 64 for a one-stroke victory at the USLPGA Tour Mizuno Classic tournament on Sunday.

The 27-year-old American, starting the day seven strokes behind the pace in eig