Alexandra "Alex" Eala will be playing for far more than herself at the US Open.

As the 21-year-old Filipina steps onto the brightest stage of her blossoming career, she will carry the hopes of an entire nation into the season's final Grand Slam — a country whose last globally competitive tennis presence dates back generations, making her rise a rare milestone for Southeast Asian tennis as a whole.

The US Open begins Monday at the USTA Billie Jean King Tennis Center, but according to the official schedule and court assignment released Sunday, the crowd favorite Ms. Eala will not play until Wednesday (Manila time) at Louis Armstrong Stadium.

Widely regarded today as the poster girl of world tennis, Ms. Eala will face home-crowd qualifier Mary Stoiana, ranked No. 122 in the WTA and a former US NCAA MVP, who earned her first-ever Grand Slam main draw berth with three wins in the qualifying round.

As in every city Ms. Eala has played, a legion of Filipino fans is expected to fill the 14,000-seat stadium — the second-largest venue in New York behind the grand Arthur Ashe Stadium, where Ms. Eala debuted in the Stars of the Open exhibition match last week.

"I understand the importance of what and who I represent along with the (Filipino) values and the culture I carry on court," Ms. Eala said on the "Served with Andy Roddick" podcast ahead of her highly anticipated US Open return. "It's very important for me to understand that it's the Filipino culture that's important. It's what I represent that's important and not just me as an individual. The reason why I have a big following is because people see themselves in me."

Ms. Eala arrives in New York with all-time-high confidence and momentum after setting new career marks in nearly every metric: a career-best world ranking (No. 18), a career-best Grand Slam seeding (No. 17), a special customized blue-themed Nike jersey honoring the Philippine flag, new covers on Sports Illustrated and Forbes among others, and fresh motivation from fellow Philippine sports flag-bearers led by compatriot Jordan Clarkson of the New York Knicks in the NBA.

Ms. Eala, who drew crowds of fans even at practice sessions, will also enjoy triple the support she received last year, when she debuted at the US Open as the world No. 75 and became the first Filipina to win a match in any Grand Slam main draw with a 6-3, 2-6, 7-6 (13-11) upset of then-world No. 15 Clara Tauson of Denmark.

"I think at the forefront of everything is gratitude. I'm very thankful for the support that my fans and supporters give me, but in terms of contributions to the world of tennis and history, I think I'm just a drop in the ocean," Ms. Eala said at the pre-US Open press conference.

Last month, seeded No. 29, Ms. Eala had a magical Round of 16 run at Wimbledon, followed by a breakthrough WTA Tour title in Washington, D.C., which served as her stepping stone into the sport's elite.

Surpassing that at the US Open — or going all the way — is the ultimate goal, come hell or high water through a gauntlet, provided she takes care of business against the 23-year-old Ms. Stoiana, tentatively scheduled for 8:40 a.m. Wednesday.

Projected to stand in her way in a stacked bottom half of the bracket are No. 14 Iva Jovic, No. 4 Coco Gauff, No. 5 Mirra Andreeva and No. 2 Elena Rybakina, with world No. 1 Aryna Sabalenka headlining the upper half of the 128-woman field.

"That really keeps me humble, motivated and wanting to work harder to stay among these incredible people," vowed Ms. Eala, who warmed up for the biggest Slam of her career with a mixed doubles debut alongside ATP No. 4 Felix Auger-Aliassime of Canada and a friendly match against her good friend Ms. Jovic.

She also got to play on court with her father, Michael — extra fuel for a battle bigger than herself — before representing the country at the Asian Games this month in Aichi and Nagoya, Japan, where she has previously delivered for the flag, including a doubles gold at the 2022 Asian Games in Hangzhou. — John Bryan Ulanday