NEW YORK (AFP) - Now that she has reached her first career Grand Slam final, Jelena Jankovic says her main goal is to win a US Open title but a number-one ranking would tickle her funny bone as well. "I was laughing when I was 1,000th in the world but maybe I (laugh) a little more now that I'm No. 1 or 2," said Jankovic, who squares off against eight-time Grand Slam winner Serena Williams in the US Open women's final. There will be plenty at stake in the Arthur Ashe Stadium showdown, which is scheduled for Saturday but could be moved to Sunday if an expected rain and wind storm blows into the New York area. Not only will Jankovic and Williams be gunning for the 1.5 million dollars in first place prize money but the winner will also surpass Serbia's Ana Ivanovic as world number one. "She's the strongest player on the tour," Jankovic said of Williams. "Together with her sister. Nobody has the power they have. "They are great athletes. I am a little athlete. "So if you want to win you really have to be on the top level and you have to go for every shot. It will be difficult but it is doable." Serbia's Jankovic reached her first career Grand Slam final with a 6-4, 6-4 win over reigning Beijing Olympic gold medallist Elena Dementieva on Friday. Two-time champion Williams needed just 88 minutes to dispatch Russian sixth seed Dinara Safina 6-3, 6-2. Williams, who is in her first US Open final in six years, said all the pressure is on Jankovic. "I have nothing to lose," Williams said. "I am going against someone that is ranked higher than me. "She has a lot of pressure to win her first Grand Slam and I am just enjoying every moment." This will be the seventh career meeting between Jankovic and Williams with each winning three times. Williams won their last meeting earlier this year in Miami 6-1, 5-7, 6-3. They have never met in a final before but Jankovic has won both times they squared off in a semi-final in Los Angeles (2006) and Dubai (2005). "I don't know too many people on the tour that can hang in there as much as she can," Williams said. "She's playing well and she's just going for glory." Both players have held the No. 1 title previously. Jankovic held it for one week last month while the 26-year-old Williams was No. 1 for 57 weeks beginning in July 2002. Williams doesn't mince words when talking about getting back to the top. "I know I will get (No. 1) eventually," she said. "I just want to be able to win Grand Slams and play and stay healthy. I think the ranking will definitely come." Some people were ready to hand Williams the US Open trophy after she beat sister Venus in straight sets in the quarter-finals. Jankovic thinks otherwise. "This year we are 1-1," Jankovic said. "So it will be a tough match. She loves to play here at the Open and so do I. "I love being here. I love the atmosphere." Williams is not worried about the weather putting a damper on her Grand Slam plans. "I don't know if we will play tomorrow but I am ready to play," she said. Hopefully we can. If not, I will be ready for Sunday, Monday, Tuesday, it doesn't matter."