A sock is an item of clothing worn on the feet. The foot is among the heaviest producers of sweat in the body, as it is able to produce over 1 US pint (0.47 l) of perspiration per day. Socks help to absorb this sweat and draw it to areas where air can evaporate the perspiration. In cold environments, socks decrease the risk of frostbite. Its name is derived from the loose-fitting slipper, called a soccus in Latin, worn by Roman comic actors.

Socks have evolved over the centuries from the earliest models which were made from animal skins gathered up and tied around the ankles. In the 8th century BC, the Ancient Greeks wore socks from matted animal hair for warmth. The Romans also wrapped their feet with leather or woven fabrics. By the 5th century AD, socks called "puttees" were worn by holy people in Europe to symbolise purity. By 1000 AD, socks became a symbol of wealth among the nobility. From the 16th century onwards, an ornamental design on the ankle or side of a sock has been called a clock.

Jack Sock (born September 24, 1992) is an American tennis player. The men's junior US Open champion in 2010, he is best known for winning the 2011 US Open mixed doubles title with fellow American Melanie Oudin.

Sock played his first ITF junior tournament in October 2008, aged 16, at the Pan American Championships. In the 2009 US Open, his third junior tournament, he reached the semifinals of the junior doubles with Matthew Kandath, and the third round of the junior singles.

Sock played relatively infrequently on the junior circuit, however, entering just two further tournaments: the Dunlop Orange Bowl in 2009 and the junior singles at the 2010 U.S. Open. At this tournament, he received a wildcard entry, but proceeded to the final. There, he defeated fellow American Denis Kudla, 3–6, 6–2, 6–2, to become the first American winner of the junior championships since Andy Roddick in 2000. He won the Boy's Junior National Tennis Championship in 2010 and 2011, earning a wildcard in both years for the main draw of the US Open.

Grigor Dimitrov (Bulgarian: Григор Димитров; born May 16, 1991, in Haskovo) is a tennis player from Bulgaria. He achieved a career high ranking of World No. 52 on August 22, 2011. Dimitrov also enjoyed a very successful junior career, in which he held the World No. 1 ranking and won the boy's singles titles at the 2008 Wimbledon Championships and the 2008 US Open.

Grigor was born in Haskovo, Bulgaria as the only child of father Dimitar, a tennis coach and mother Maria, a sports teacher and former volleyball player. He first held a tennis racket, given to him by his mother at the age of three and when he was five he began to play daily. During his teenage years he lived in Paris, France while training at Patrick Mouratoglou's Tennis Academy. He speaks fluent Bulgarian and English and says his main interests are all sports, cars, computers and watches.

His first major junior coup was when, at aged 14 he claimed the U14 European title. In 2006 he won the Orange Bowl U16 boys singles and was later named the Eddie Herr International 2007 Rising Star.

Seth Woobury MacFarlane (born October 26, 1973) is an American actor, voice actor, animator, screenwriter, comedian, producer, director and singer. He created the animated sitcom Family Guy and co-created American Dad! and The Cleveland Show, for which he also voices many of the shows' various characters.

A native of Kent, Connecticut, MacFarlane is a graduate of the Rhode Island School of Design, where he studied animation, earning a Bachelor of Fine Arts degree. He was an animator and writer for Hanna-Barbera for several television shows, including Johnny Bravo, Cow and Chicken, Dexter's Laboratory and I Am Weasel, before creating his own series for 20th Century Fox entitled Family Guy in 1999. MacFarlane went on to co-create American Dad! in 2005, and The Cleveland Show in 2009 for Fox. He also went on to serve as executive producer on the Fox sitcom The Winner.

As an actor, he has made guest appearances on shows such as Gilmore Girls, The War at Home and FlashForward. MacFarlane's interest in science fiction and fantasy has led to cameo and guest appearances on Star Trek: Enterprise and voicing the character of Johann Kraus in Guillermo del Toro's Hellboy II: The Golden Army. In 2008, he created his own YouTube series entitled Seth MacFarlane's Cavalcade of Cartoon Comedy. As a singer, MacFarlane has performed at several venues, including Carnegie Hall and the Royal Albert Hall.