Twenty-time tennis grand slam champion Roger Federer has won the 2017 Laureus World Sportsman of the Year and Comeback of the Year awards.
The 36-year-old Swiss won the Australian Open and Wimbledon titles in 2017 after nearly five years without a major.
"I didn't believe I would ever come back to this level," said Federer. "The year I had was something else."
Serena Williams took the World Sportswoman of the Year award after winning her 23rd grand slam in 2017.
"This means the world to me," added world No 1 Federer.
"The comebacks are always extremely emotional. Last year was a dream come true."
Formula 1 constructor's champion Mercedes picked up the Team of the Year accolade, and wheelchair athlete Marcel Hug won Sportsperson of the Year with a Disability.
"There's so much expertise in all parts of our team, I feel so proud to be a part of it," said Mercedes' world champion Lewis Hamilton.
Also at the ceremony in Monaco, golfer Sergio Garcia secured the Breakthrough prize following his Masters success, while recently-retired AS Roma forward Francesco Totti clinched the Laureus Academy Exceptional Achievement award.
Brazilian football club Chapecoense were given the Best Sporting Moment of the Year for their response in adversity following a plane crash in 2016 in which they lost the majority of their team.
Sportsman of the Year award - Roger Federer
Also nominated: Cristiano Ronaldo (Portugal) football, Mo Farah (GB) athletics, Chris Froome (GB) cycling, Lewis Hamilton (GB) Formula 1 and Rafael Nadal (Spain) tennis
Sportswoman of the Year award - Serena Williams
Also nominated: Garbine Muguruza (Spain) tennis, Caster Semenya (South Africa) athletics, Allyson Felix (US) athletics, Katie Ledecky (US) swimming and Mikaela Shiffrin (US) alpine skiing
Team of the Year - Mercedes
Also nominated: France's Davis Cup team (tennis), Golden State Warriors (basketball), New England Patriots (American football), New Zealand's America's Cup team (sailing) and Real Madrid (football)
Breakthrough of the Year - Sergio Garcia
Also nominated: Anthony Joshua (GB) boxing, Kylian Mbappe (France) football, Jelena Ostapenko (Latvia) tennis, Giannis Antetokounmpo (Greece) basketball and Caeleb Dressel (US) swimming
Comeback of the Year - Federer
Also nominated: FC Barcelona (Spain) football, Valentino Rossi (Italy) motorsport, Sally Pearson (Australia) athletics, Justin Gatlin (US) athletics and Chapecoense (Brazil) football
Sportsperson of the Year with a Disability - Marcel Hug
Also nominated: Yui Kamiji (Japan) wheelchair tennis, Oksana Masters (US) cross-country skiing, Bibian Mentel-Spee (Netherlands) snowboarding, Jetze Plat (Netherlands) ironman and Markus Rehm (Germany) long jump
Action Sportsperson of the Year - Armel Le Cleac'h
Also nominated: Tyler Wright (Australia) surfing, John John Florence (US) surfing, Anna Gasser (Austria) snowboarding, Mark McMorris (Canada) snowboarding and Nyjah Huston (US) skateboarding
Best Sporting Moment of the Year - Chapecoense
Also nominated: The Iowa Hawkeyes and the "Kinnick Wave" (US) American football, Bradley Lowery and his special bond with Jermain Defoe (GB) football, Kimi Raikkonen and his six-year-old fan Thomas Danel (Finland) Formula 1 and Billy Monger (GB) motorsport