Bernard Tomic has shown Lleyton Hewitt grit and now has the chance to join Australia's former world No 1 as a winner of the Apia International in Sydney.
Tomic overcame heat stress in 40-degree on-court temperatures to advance to his maiden ATP final with a fighting 7-6 (10-8) 6-4 win over Italian third seed Andreas Seppi.
Victory over the world No 23 was Tomic's seventh straight win of his unbeaten summer and earned the Queenslander a crack at big-serving South African Kevin Anderson in today's twilight final at Olympic Park.
Much is at stake for Tomic.
As well as regaining the national No 1 ranking from Marinko Matosevic, his first-round victim this week, Tomic can join two of the legends of the game in the history books.
If he beats the unseeded Anderson, Tomic will become the first Australian winner in Sydney since Hewitt in 2005 and the first 20-year-old to hoist the trophy since the great Roger Federer in 2002.
"It's about time, huh," Tomic, a two-time grand slam junior champion, said of his long-awaited breakthrough at senior level.
"It means really a lot to me to make my first final here in Sydney."
Hewitt is a four-time winner of the event and, fittingly, Tomic displayed some of his countryman's trademark fighting spirit to get to the final.
After calling for the ATP trainer while leading 5-4 in the opening set, Tomic complained of dizziness and then had to fend off six break points at 5-all.
At the 6-5 changeover, Tomic sought treatment from the tournament doctor and physio, saying: "Something's wrong, I can't see".
He took two magical pills and then saved four set points in the tiebreaker before snatching the set after 55 minutes.
Seppi, who led Novak Djokovic by two sets to love at last year's French Open, was also the first to falter in the second set.
He dropped serve in the ninth game to give Tomic a 5-4 advantage and the Australian had no trouble closing out the match after one hour, 23 minutes.
Tomic is the first Australian to make the Sydney final since Chris Guccione lost to Dmitry Tursunov in 2008.
Earlier, Anderson denied Frenchman Julien Benneteau in a three-set cliffhanger to make the final.
Anderson saved two match points before prevailing 3-6 6-4 7-6 (10-8) to become the first South African to make the Sydney final in 45 years of open-era tennis.
Tomic beat the 36th-ranked Anderson in their only previous career meeting at ATP level, at the Shanghai Masters in 2011, though the South African defeated the then-teenage Aussie at a Challenger event the year before.
Tomic, ranked 64th after his run of outs last year, is certain to return to the top 50 and will arrive in Melbourne on Monday as the new Australian No 1 if he wins the title. AAP