Emma Raducanu "has the potential to be world number one" as she targets making an impact at the 2022 Australian Open, according to Greg Rusedski.
The 18-year-old stunned the sporting world when she triumphed at the US Open as a qualifier to make history, and Rusedski believes she can now kick on and reach the very top of the sport.
Raducanu, who is still looking for her long-term coach to lead her into next season, has been backed to win numerous Grand Slam titles by the former British tennis star.
Australian Open
'Ooo!' - Raducanu doubles over in pain at Australian Open
"I think she’s going to be a multiple Grand Slam champion," Rusedski told Sky Sports.
I think she has the potential to be a world number one.

Raducanu hits red carpet with Hollywood stars for James Bond premiere

"What she has done in her first two majors, there are very few that have done that.
"She got to the fourth round of Wimbledon in her first major and then she has gone on to win the US Open.
"There are only three other female players that have got to the fourth round or better in both events in their first two majors. Chris Evert, who was world number one and a multiple Slam winner, Jennifer Capriati, world number one and a multiple Slam winner, and Monica Seles, so she joins that category of elite superstars.
"We’ve never seen this in the game before, for someone to come through qualifying and go on to win a major, so her future is going to be exceptional so long as she can stay healthy, put the right team around her."
Rusedski, who reached the final of the US Open in 1997, concluded: "I think her future is going to be incredible."
Seeded number three at the Transylvania Open last week, Raducanu reached the quarter-finals before losing out to Marta Kostyuk in straight sets.

Kate Middleton plays tennis with Emma Raducanu

Away from the WTA Tour, she is also set to take part in an exhibition event at London's Royal Albert Hall on November 28 as part of a hectic schedule in the latter part of the year.
She will begin her preparations for Melbourne Park in January by playing an exhibition event in the Middle East in December.
Raducanu has signed up for the Mubadala World Tennis Championship in Abu Dhabi, which will take place from December 16-18.
The teenager is then likely to fly from Abu Dhabi straight to Australia in order to prepare for the first Grand Slam of the new season, which gets underway on January 17.
- - -
The UCI Track Champions League is coming and you can watch all of the action live on the Eurosport app, eurosport.co.uk and discovery+. Find out more about the "mind-blowing" new era for track cycling, with the first event on November 6 in Mallorca.
Australian Open
'Emma, Emma!' - Raducanu heads to wrong end of court as umpire gets involved
Australian Open
Raducanu begins second round match with lively opening rally