Rafael Nadal, Neymar, Kylian Mbappe and Mikaela Shiffrin are some of the athletes who showed their respect on social media.
The world of sport has come together to show their respect after a massive fire ravaged the Notre Dame Cathedral in Paris.
Stars from around the world took to Instagram and Twitter to express their heartache for France.
Two-time alpine skiing Olympic champion Mikaela Shiffrin voiced her sadness as she tweeted: "This is unbelievable. Heartbreaking news from Paris."
Tennis ace Rafael Nadal, Football greats Neymar and his Paris Saint-Germain team mate Kylian Mbappe as well as PyeongChang 2018 Olympic figure skating medallists Gabriella Papadakis and Adam Rippon also posted heartfelt tributes via social media.
Alpine skiing: Mikaela Shiffrin (USA), two-time Olympic champion
Football: Neymar (Brazil), 2016 gold medallist
Football: Kylian Mbappe (France), 2018 FIFA World Cup winner
Tennis: Rafael Nadal (Spain), 11-time French Open champion
Paris 2024 Organising Committee
Canoe Slalom: Tony Estanguet (France), Paris 2024 President and three-time Olympic champion
Figure Skating: Gabriella Papadakis (FRA), PyeongChang 2018 silver medallist
Tennis: Boris Becker (Germany), former World No 1, three-time Wimbledon champion
Figure Skating: Adam Rippon (USA), PyeongChang 2018 team bronze medallist
Basketball: Nicolas Batum (FRA), Olympian at London 2012 and NBA player
Boxing: Sarah Ourahmoune (FRA), Rio 2016 silver medallist
Handball: Allyson Pineau (FRA), Olympian at London 2012
Alpine Skiing: Tessa Worley (FRA), Olympian at PyeongChang 2018 and 4-time World champion
Taekwondo/Cross Country skiing: Pita Taufatofua (TGA), Olympian at Rio 2016 and PyeongChang 2018