Nick Kyrgios has soared up the ATP rankings following his brilliant run to the Abierto Mexicano Telcel title in Acapulco last week.
The Australian entered the tournament ranked 72nd in the world, but a terrific run to the crown saw Kyrgios more than halve his ranking to No. 33.
In his run to his fifth ATP title, Kyrgios took down both top seeds - Rafael Nadal in the second round and Alexander Zverev in the final - as well as Andreas Seppi, Stan Wawrinka and third seed John Isner.
The 23-year-old is still some way off from reaching his career-high ranking of No. 13, achieved in October 2016, but he is now on the cusp of earning seedings for major tournaments - something he didn't have for January's Australian Open, which he entered ranked No. 52.
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Regardless, getting himself out of trouble on numerous occasions in Acapulco proved to Kyrgios that anything's possible.
Countryman Alex de Minaur also rose to a career-high No. 24 after reaching the quarters in Acapulco, and retained his spot as Australia's highest-ranked men's player.
Former No. 33 John Millman also rose two places to No. 42.
Roger Federer's 100th career title also helped him leapfrog Juan Martin del Potro, Kevin Anderson and Kei Nishikori into No. 4.
Federer brought up the ton at the Dubai Tennis Championships, with the Swiss veteran taking down Australian Open conqueror Stefanos Tsitsipas in straight sets.
Tsitsipas, though, broke into the top 10 for the first time, moving above Marin Cilic and dethroning Zverev as the youngest player in the top 10.
The 20-year-old also made history in becoming the first Greek player to break into the top 10.
The upcoming BNP Paribas Open is also set to throw the cat among the pigeons, with a star-studded field to take on Indian Wells in the quest for a crucial Masters 1000 title.
.@StefTsitsipas makes 🇬🇷 tennis history by breaking into the Top 10 for the first time. 👏
— ATP Tour (@ATP_Tour) March 4, 2019
View Latest ATP Rankings ▶️ https://t.co/xVBU9gYwdB pic.twitter.com/jAdD4au9gp
There were also rankings rises for young Aussies Alex Bolt, Max Purcell and Andrew Harris.
Bolt rose nine places to No. 125 after reaching the quarters at the Indian Wells Challenger, while Purcell (No. 266) and Harris (No. 301) rose eight and 28 places respectively after impressing at the Yokohama Challenger.
ATP RANKINGS (5/3/2019)
TOP 10 & AUSTRALIANS IN TOP 100
| RANK | MOVE | PLAYER | NAT | AGE | POINTS |
| 1 | Novak Djokovic | SRB | 31 | 10955 | |
| 2 | Rafael Nadal | ESP | 32 | 8365 | |
| 3 | Alexander Zverev | DEU | 21 | 6595 | |
| 4 | +1 | Roger Federer | SUI | 37 | 4600 |
| 5 | -1 | Juan Martin Del Potro | ARG | 30 | 4585 |
| 6 | -1 | Kevin Anderson | RSA | 32 | 4295 |
| 7 | -1 | Kei Nishikori | JAP | 29 | 4190 |
| 8 | Dominic Thiem | AUT | 25 | 3800 | |
| 9 | John Isner | USA | 33 | 3405 | |
| 10 | +1 | Stefanos Tsitsipas | GRE | 20 | 3175 |
| 24 | +2 | Alex de Minaur | AUS | 20 | 1508 |
| 33 | +39 | Nick Kyrgios | AUS | 23 | 1205 |
| 42 | +2 | John Millman | AUS | 29 | 1091 |
| 49 | -2 | Matthew Ebden | AUS | 31 | 956 |
| 77 | +2 | Jordan Thompson | AUS | 24 | 703 |
| 82 | +1 | Bernard Tomic | AUS | 26 | 679 |
