American Kenin won the 2020 Australian Open - before the coronavirus pandemic brought the tennis calendar to a halt - while 19-year-old Świątek triumphed at the French Open.

Belarus' Victoria Azarenka and Aryna Sabalenka, Romania's Simona Halep and Naomi Osaka of Japan - who won the US Open - are also nominated.

The WTA has announced nominees for its end-of-year awards, while the Association of Tennis Professionals (ATP) has reveled the shortlists for its player-voted honours.

Świątek is also nominated by the WTA for Most Improved Player of the Year, having broken into the top 20 in the world rankings.

The Pole started the season ranked 59th.

She faces competition in this category from Elena Rybakina of Kazakhstan, France's Fiona Ferro, US Open semi-finalist Jennifer Brady of the United States and Tunisia's Ons Jabeur, the first Arab woman to reach the quarter-finals of Grand Slam.

Azarenka, who was runner-up at the US Open, is also shortlisted for the WTA Comeback Player of the Year.

The other three nominees are Germany's French Open quarter-finalist Laura Siegemund, Romania's Patricia-Maria Țig and Bulgaria's Tsvetana Pironkova.

Remarkably, Pironkova reached the 2020 US Open quarter-finals while playing in her first tournament for more than three years.

The WTA Newcomer of the Year award will be given to either the American Ann Li, Canada's Leylah Fernandez, Italy's Martina Trevisan or Argentina's Nadia Podoroska.

Winners of the WTA's awards are due to be announced next week and are voted for by members of the media.

A number of ATP categories will be voted by players and these of the ones for which shortlists have been published.

South Africa's Kevin Anderson, Russia's Andrey Kuznetsov, Czech Vasek Pospisil and Milos Raonic of Canada have all been shortlisted for Comeback Player of the Year.

France's Ugo Humbert, Russian Andrey Rublev, Argentina's Diego Schwartzman and Italian Jannik Sinner are all in contention to win the Most Improved Player of the Year.

Rublev and Schwartzman both reached the ATP Finals, and Schwartzman also made a maiden Grand Slam semi-final, while 19-year-old Sinner became the youngest French Open quarter-finalist in more than a decade.

Schwartzman is also nominated for the Stefan Edberg Sportsmanship Award, given to someone who holds up the integrity of the sport through fair play and their off-court activities.

Spain's 20-time Grand Slam singles champion Rafael Nadal, Australia's John Millman and Austria's Dominic Thiem are also shortlisted.

Spain's Carlos Alcaraz, Sebastian Korda of the US, Italy's Lorenzo Musetti, Austria's Jurij Rodionov, Finland's Emil Ruusuvuori and Brazilian Thiago Seyboth Wild are all in the running for the Newcomer of the Year award.

All are ATP Next Gen players who broke into the top 100 or 150 of the men's singles rankings for the first time in 2020.

Gilles Cervara, who coaches Daniil Medvedev, is nominated for Coach of the Year, as is Schwartzman's coach Juan Ignacio Chela Schwartzman, Nicolas Massu who coaches US Open champion Thiem, Sinner's coach Riccardo Piatti and Fernando Vicente, who instructs Rublev.

The ATP has said that award winners will be confirmed later this month, while fans are able to vote for their favourite singles player and doubles pairing.