Mats Wilander believes Djokovic could tie Federer with most Majors by the end of 2020: "Novak can win all four"

Trailing only Rafael Nadal and Roger Federer, who have won 19 and 20 Majors respectively; Djokovic is relatively younger than the duo and could eventually surpass Federer's tally in the future.

Wilander believes this will happen sooner rather than later, as the Serb has been impressive to start the year. Djokovic is undefeated in singles action in 2020, claiming both the inaugural ATP Cup for Serbia and the Australian Open.

Wilander is of the opinion that Djokovic's triumph in Melbourne will be a huge confidence booster. Furthermore, the Serb is the favorite at Wimbledon and the US Open so the odds of him catching Nadal this year is very high.

"It is getting closer and closer in the GOAT race and when Novak wins the Australian Open, he usually has a good year," Wilander said. "Does winning here makes him the favorite at Wimbledon where he is the defending champion? Yes, which brings his tally to 18 Majors, making him the first pick at the US Open as well for the potentially 19th crown."

Djokovic is also a threat to Nadal at the French Open, having claimed his lone Roland Garros title in 2016 to achieve the career Grand Slam. Additionally, the Serb hasn't lost before the quarterfinals in Paris since 2009.

"At the end of the year, we could have two players on 20 or two players on 19 Majors or more, because Novak can win all four." Wilander added. "Melbourne is a massive win for him going forward. A loss here would have been tough to get confidence and come back.

"Now, the door is open for him to start climbing through and talk about being the greatest ever. The 'big 3' refuse to lose, pushing each other all the time with no one wanting to go away."