1 STEFFI GRAF AND ANDRE AGASSI, WIMBLEDON, 2009
The biggest regret of Agassi's career came after his 1992 Wimbledon triumph.
The American was looking forward to dancing with the women's winner, Germany's Graf, at the champions' ball but the tradition was scrapped for the first time.
Seventeen years later, they waltzed onto Centre Court at the All England Club as husband and wife to help celebrate the completion of the venue's roof.
The couple have 30 Grand Slam singles titles between them.
"My greatest achievement might be being No. 1 in the world and No. 2 at home. That's not an easy thing to do", said eight-time Slam champion Agassi. Watch: bit.ly/2WYLxcV
2 QUAH SIBLINGS, SEA GAMES, 2019
Singapore's Quah Zheng Wen, Ting Wen and Jing Wen won 13 gold and three silver medals in the Philippines - more golds than Myanmar (four), Cambodia (four), Brunei (two), Laos (one) and East Timor (none) put together in the overall tally. Sisters Ting Wen and Jing Wen shared three titles in the 4x100m freestyle, 4x200m free and 4x100m medley, setting Games and national records in all three relays.
3 HOLIDAY BROTHERS, NBA, 2019
With 4min 54sec left in the third quarter, Indiana Pacers swingman Justin Holiday, 31, entered the Dec 28 game against hosts New Orleans Pelicans. With brothers Aaron, 23, and Jrue, 29, on the floor, the Holidays became the first trio of siblings to play in the same National Basketball Association (NBA) game.
Pacers guard Aaron finished with a game-high 25 points but Pelicans guard Jrue (20) was on the winning side. Watch: bit.ly/2JvvTxt
4 THE MALDINIS, SERIE A, 2020
When Daniel Maldini came on as a substitute against Verona in February, he continued a family tradition. His AC Milan debut came 3,899 days after his father Paolo played his last game for the club - against Fiorentina - and 66 years after his grandfather Cesare's first appearance for the San Siro club.
The 18-year-old midfielder featured in a few stoppage-time minutes before the match ended 1-1. The Maldinis collectively have 1,315 appearances for the Rossoneri. Watch: bit.ly/344AfoQ
5 SHAQUEM AND SHAQUILL GRIFFIN, NFL, 2020
Shaquem, the only one-handed National Football League player since 2018, celebrated another career milestone in January - his first sack. And he got to do it with his biggest supporter, twin brother Shaquill.
On Jan 12, the Seattle Seahawks teammates combined to take down Green Bay Packers star Aaron Rodgers and celebrated by running to the end zone and embracing.
"Everything we do, it's like what's the odds of that? We're always the one per cent," said Shaquem, 24. Watch: bit.ly/2QZrOWH
6 NINO SALUKVADZE AND TSOTNE MACHAVARIANI, OLYMPIC SHOOTING, 2016
Salukvadze's eighth Olympics was extra special because Machavariani was also in the Rio de Janeiro field, making them the first mother-son duo to compete at the same Games.
In Brazil, the 10m air pistol bronze medallist at Beijing 2008 finished 34th in the same event and sixth in the 25m pistol.
Georgian Machavariani was 29th in the 10m air pistol and 15th in the 50m air pistol. Watch: http://bit.ly/2X1AoYF
TOMORROW: Longest rallies