Updated: June 26, 2006, 6:18 PM ET Is Jackson the future of American women's tennis?By Greg Garber ESPN.com WIMBLEDON, England -- Zina Garrison, sitting in the comfort of her home in Maryland, laughed into the telephone. The United States Fed Cup captain was asked, point-blank, whether 19-year-old Jamea Jackson would be a part of the team that would engage Belgium in the July 15-16 semifinals. By way of pleading the Fifth, Garrison opted instead to talk about Jackson's effervescent personality. Thomas Niedermueller/Bongarts/Getty Images Jamea Jackson clinched the United States' Fed Cup tie in April, beating Germany's Martina Muller. "I tell her she doesn't have a million-dollar smile," Garrison said. "She has a two-million-dollar smile." Read into that what you will. For now: America, get ready for Jamea Jackson. And, please, don't say you weren't warned. There was a time, not very long ago, when American women were a powerful force at the All England Club For seven consecutive years, before the 2005 event, three or four of the eight quarterfinalists here were U.S. women. The usual suspects were Venus and Serena Williams, Lindsay Davenport, Jennifer Capriati, and Monica Seles, with a 1999 semifinals guest appearance by Alexandra Stevenson. Last year, the run ended with only two Americans in the quarters, Davenport and Venus Williams, who met in a rousing final won by Williams in the 9-7 third set. This year, that quarterfinal quotient is likely to be one -- at best. Venus Williams is the only American woman among 32 seeds (No. 6). On Sunday, Williams took herself out of the Fed Cup running. Davenport withdrew from Wimbledon with a back injury; Serena Williams won't be back from a knee injury until next month; and Capriati and Seles are in the limbo of unannounced retirement. Which leaves -- whom, exactly? Although you can make a reasonable case that the next best U.S. women's player is Martina Navratilova, who turns 50 in October, the answer is, emphatically … Jackson. Although Jill Craybas and Laura Granville are ranked ahead of her (at Nos. 43 and 57, respectively), Jackson is already No. 58 and rising like a bullet. She has the goods to be America's next important tennis player; Garrison insists Jackson has top-10 potential. Early next week, when Garrison announces the Fed Cup team that will play in Ostend, Belgium, Jackson most assuredly will be on it, although Garrison would not confirm that and suggested she might consider changes to the rest of the team that defeated Germany 3-2 in the opening round. Jackson was the leading heroine, beating Anna-Lena Groenefeld and Martina Muller in singles. She's America's hottest player -- man or woman, having just reached her first WTA Tour final a week ago in Birmingham, England. She defeated four seeded players -- Klara Koukalova, Jelena Jankovic, Elena Likhovtseva and the top seed and two-time defending champion, Maria Sharapova -- before losing in the final to Vera Zvonareva in two tiebreakers. The win over Sharapova, who was ranked No. 4, compared with Jackson's No. 81, was Jackson's first over a player ranked among the top 10, a significant milestone -- particularly as Sharapova had beaten her in straight sets earlier in the year at Indian Wells, Calif. Like Sharapova and emerging Czech Republic star Nicole Vaidisova, Jackson is a product of Nick Bollettieri's Tennis Academy, having trained in Bradenton, Fla., since she was 11. Sharapova, who also is 19, started there when she was 9. "I grew up with Jamea," Sharapova said at the Edgbaston Priory Club. "We played together at Bollettieri's. She has always been a really promising player." Jackson, apparently, has begun delivery on that promise. Listed at 5-foot-4, Jackson is one of the shortest players on tour. Just don't call her small. She is solid, equipped with muscular thighs, and built along the lines of her father, Ernie, who played cornerback for the New Orleans Saints, Atlanta Falcons and Detroit Lions. She has a complete game, with power from both sides, that seems made for grass. Jackson has a ludicrous backhand, terrific footwork and an improving forehand. The serve needs a little strength, but Garrison singled out one area that needs a makeover. "Over there in Germany, all the other girls were talking to her," Garrison said. "We all believe she can be a top-10 player -- but it's a matter of her belief. I think the potential is there. I think she's very, very close to putting herself over the top." American women in Wimbledon Name WTA rank Venus Williams 12 Jill Craybas 43 Laura Granville 57 Jamea Jackson 58 Shenay Perry 62 Meghann Shaughnessy 73 Ashley Harkleroad 76 Amy Frazier 80 Lisa Raymond 84 Vania King 88 Bethanie Mattek 103 Meilen Tu 105 Lilia Osterloh 109 Mashona Washington 120 The critical-mass moment came in February when Jackson decided to replace her father with coach Rodrigo Nascimento after a first-round loss to qualifier Yaroslava Shvedova in Memphis. A stickler for conditioning, Nascimento and a new trainer have helped Jackson make the commitment necessary to succeed at the highest level of tennis. "She had to make a decision -- all of us had to make a decision at one point in our careers -- do you really want to go for it? It's a tough decision, not working with her father," Garrison said. "She made a change for her life and, ultimately, I think it was the right decision." On Monday, the daylong rain delay might have come at a good time for Jackson. She was treading water even before her first-round match against Kirsten Flipkens of Belgium was suspended with Jackson serving at love-15 to level the match at 5-all. The hole could have been far deeper. Flipkens, who won the Wimbledon and U.S. Open junior tournaments and finished the 2003 season as the ITF's No. 1 junior, is a polished young player. Flipkens, 20, had two set points, but lost them by double-faulting and watching a lovely backhand volley by Jackson drop in for a winner. Two poor forehands gave Jackson the game and, after a successful Flipkens lob, the tarpaulin was pulled over soggy Court 6. The match will resume Tuesday, weather permitting. Garrison said that Jackson needs a breakthrough performance in a major; Wimbledon's slippery grass surface plays well to her athletic gifts. In her short career, Jackson is 9-4 on the natural stuff. "She's such a great athlete," Garrison said. "She has her mom's spunky personality and her dad's a good athlete, so she's a good combination of both. She just needs one tournament to knock her over the top." Greg Garber is a senior writer for ESPN.com.