The evolving world of sport means a new decade is likely to see widespread change.
With superstars like Lionel Messi, LeBron James, Roger Federer and Lewis Hamilton unlikely to be plying their trades in 2030, the stage is set for new names to come to the fore.
Omnisport's team of writers have tipped 20 20-year-olds to do just that over the next 10 years.
Men's football: Joao Felix
A €126m move from Benfica to Atletico Madrid made Joao Felix the second most expensive teenager in football history. His career in LaLiga is yet to truly ignite but the forward's lavish gifts are beyond doubt as he faces up to the decade when Cristiano Ronaldo will leave the stage for their native Portugal. Joao Felix is the anointed heir.
Basketball: Luka Doncic
The 2018 EuroLeague MVP and 2019 NBA Rookie of the Year, Doncic's incredible rise has continued unchecked this season – he is averaging 28.8 points, 9.5 rebounds and 9.0 assists for the Dallas Mavericks. He should earn a first All-Star appearance this season and make his bow in the playoffs, where you would expect to see him featuring regularly in the coming years.
Cricket: Prithvi Shaw
Opening batsman Shaw became the youngest Indian to score a Test hundred on debut in 2018 and followed that up with a half-century in his second appearance. However, last year was one to forget for Shaw, who had injury problems before serving a six-month doping ban having taken a substance typically found in cough syrups. A first-class double hundred last month suggests he is ready to make up for lost time.
Tennis: Marketa Vondrousova
Although she was unable to win a title on the WTA Tour in 2019, Vondrousova was the runner-up at the French Open – one of three final appearances last year – and having risen to 16th in the world rankings she looks set to break the top 10 soon. The Czech's unorthodox playing style and penchant for drop shots makes her a particularly entertaining watch.
Formula One: Lando Norris
Norris enjoyed an excellent debut season in Formula One, helping McLaren to an impressive fourth place in the constructors' championship. After landing three straight points finishes to end the year, he carries momentum into 2020 and looks capable of challenging Charles Leclerc and Max Verstappen over the next 10 years.
UFC: Chase Hooper
Featherweight Hooper was awarded a development deal after winning the second season of Dana White's Tuesday Night Contender Series in 2018 and is the youngest fighter on the UFC roster. He improved his unbeaten mixed martial arts record to 8-0-1 by stopping David Teymur in the first round of a thoroughly impressive UFC debut in December.
American football: Trevor Lawrence
The NFL is blessed with talented young quarterbacks like Patrick Mahomes, Lamar Jackson and Deshaun Watson, but the potential star of the 2020s will not enter the league until 2021 at the earliest. Clemson's Lawrence possess the size, skill and nerve to succeed at the next level. He is still yet to lose a game in college and is one win away from back-to-back National Championships.
Sport climbing: Janja Garnbret
Sport climbing will make its Olympic debut at Tokyo 2020 and Garnbret is a favourite for success. She successfully defended her bouldering and combined titles at last year's world championships and added gold in the lead discipline. The Slovenian's tally of 14 International Federation of Sport Climbing titles is unprecedented.
Rugby league: Tom Flegler
Front-rower Flegler enjoyed a hugely promising breakthrough year with Brisbane Broncos in 2019, featuring 23 times in his maiden campaign. He has reportedly knocked back a host of lucrative offers to remain with Brisbane in 2020 and will now aim to make an even bigger impact.
Women's football: Georgia Stanway
Vastly experienced for her age, Stanway joined Manchester City from Blackburn Rovers and made her Women's Super League debut at 16 in 2015. She won her second FA Cup with a goalscoring player-of-the-match display as City beat West Ham 3-0 in 2019's Wembley final and was the youngest member of an England squad Phil Neville led to the World Cup semi-finals. If the Lionesses are to take the next step over the coming decade, expect Stanway to play a vital role.
Rugby union: Marcus Smith
Harlequins fly-half Smith is knocking on the door for full England selection after an impressive first two years of his club career. He was man of the match in last July's win over Barbarians, which fans of Eddie Jones' side will hope is a sign of things to come over the next decade.
Golf: Matthew Wolff
The PGA Tour welcomed a host of talented rookies in 2019, but Wolff may just be the best of the bunch. A standout college player with an unorthodox swing that generates enormous power, he won last July's 3M Open in only his third professional start.
MotoGP: Fabio Quartararo
After Jorge Lorenzo, the only man to defeat Marc Marquez in a MotoGP world championship, retired, and with Valentino Rossi nearing the end of his career, fans are looking to the next generation. That group looks set to be led by Quartararo, who will ride a factory-spec Yamaha for 2020 after claiming six pole positions and seven podiums in a magnificent rookie season.
Golf: Nasa Hataoka
Already fifth in the women's world rankings, Hataoka has claimed three LPGA Tour titles in the past 18 months, after becoming the first amateur to win a major on the Japan LPGA Tour back in 2016.
Baseball: Vladimir Guerrero Jnr
Guerrero has a lot to live up to but has already shown enough to suggest he may follow his father into baseball's Hall of Fame. Having signed for the Toronto Blue Jays as a free agent in 2015, Guerrero served his time in the minors before making his debut in the Major Leagues last April. He spent the rest of his maiden season displaying the kind of power that has marked him out as a star of the future, hitting .272, mashing 15 home runs and knocking in 69 RBI. By the end of the next decade, his may well be the face of baseball.
Ice Hockey: Quinn Hughes
Hughes, who could not even debut for the Vancouver Canucks until he recovered from an ankle injury in March, is an elite defenseman who also sat top of the rookie assist chart in late December.
Swimming: Michael Andrew
This year is an Olympic one and for the first time since the 1996 Games, Michael Phelps will not be in the pool. The United States needs a new swimming hero, and the hope is that Phelps' namesake can be the next star. Andrew was the youngest US swimmer to ever turn professional when he did so at 14 and, having finished fourth in the 50 metres butterfly at the 2019 World Aquatics Championships, he appears primed to be a breakout star in Tokyo.
Tennis: Denis Shapovalov
Shapovalov finished 2019 at a career-high ATP ranking of 15th, having won his first title in Stockholm. Expect his threat at the 2020 majors to be very real.
Athletics: Sydney McLaughlin
At the 2019 World Athletics Championships in Doha, gold in the 4x400 metres relay followed silver in the 400m hurdles for McLaughlin. Only a Dalilah Muhammad world record was enough to deny her the victory.
Boxing: Joseph Adorno
Currently plying his trade in the lightweight division, Adorno was brought up in Puerto Rico and his thunderous left hook has drawn comparisons to Miguel Cotto – the great four-weight world champion hailing from that boxing-mad island. Promoters Top Rank will look to step up Adorno's level of opposition in 2020, although anyone climbing into the corner opposite a young man boasting a 14-0 record with 12 knockouts should make sure they get well paid.