US Open 2026 pages
Sports · US Open 2026 · Men's Singles · Round of 128
Adolfo Daniel Vallejovs
Gael Monfils
Sunday, August 30, 2026 · Round of 128
Watch: ESPN · ESPN2 · ABC · ESPN app
My pick: Gael Monfils to advance · locked 2026-08-28 02:55 UTCPrediction
Monfils — sentiment and sample size agreeing for once. At 39, ranked No. 307, playing on a wildcard in what he has framed as his farewell season, the Frenchman still owns nearly 400 career hard-court wins and a 2016 semi-final on these courts; Vallejo, a 22-year-old Paraguayan making his US Open debut, has six. The young man's season (17–14) is honest and his ball-striking real, but Monfils in New York under lights remains one of the sport's reliable chemistry experiments — the crowd gives him legs that the calendar says he shouldn't have. Best-of-five at 39 is the honest risk in this pick: if it goes five, flip it. Through four, the showman.
The case for Adolfo Daniel Vallejo
30% to winVallejo is the fresher athlete by seventeen years, arrives with a winning season, and faces a 4–9 opponent whose ranking has fallen to No. 307 — on paper this is his match. Farewell tours run on emotion, and emotion is expensive: every long rally he extends drains the one resource Monfils cannot replace. Make it physical, make it long, and the math of age does the rest.
The case for Gael Monfils
70% to winMonfils has spent two decades turning Flushing Meadows into his personal stage — a 2016 semi-final, countless five-set nights, and a highlight reel no active player matches. The wildcard is a thank-you, but the 396 career hard-court wins are a warning: his floor on this surface, even at 39, has beaten better players than Vallejo. New York will be loudly on his side.
Both cases written 2026-08-28, before the first ball — frozen into the record exactly as written, whatever the result. The percentages are mine, quoted to a decimal because false precision is funnier — and tennis has no draw to hide the rounding in.
Tale of the tape
Adolfo Daniel VallejoGael MonfilsPlayer vitals: US Open official player feed (usopen.org) and Tennis Abstract career match logs · as of 2026-08-27.
Career head-to-head: Tennis Abstract career match logs (tour-level) · as of 2026-08-27.
The briefing
Storylines
- Monfils, 39, is playing the US Open on a wildcard in his farewell season — two weeks after he and his wife Elina Svitolina both featured in Fan Week's mixed doubles.
- Vallejo, 22, is making his US Open main-draw debut with a winning 2026 season behind him — and only six tour-level hard-court matches on his card.
- The age gap — 17 years — is the largest in any men's first-round match this year, and their careers have never crossed.
Head to head
Never met — when Monfils reached his US Open semi-final in 2016, Vallejo was twelve. The generation gap is the matchup.
Source: Tennis Abstract career match logs (tour-level) · as of 2026-08-27.
Watch: Opening-round coverage starts Sunday at 11 a.m. ET across ESPN, ESPN2 and ABC, with ESPN Deportes in Spanish — and every court streams in the ESPN app, including a whip-around channel for the early rounds. (ESPN press-room release and listings, as of 2026-08-27)
Court & schedule: Not yet assigned — the US Open posts each day's order of play the evening before, so day-one courts land the night of 29 August. A Monfils farewell match is prime night-session material for Ashe or Armstrong. (US Open order-of-play release cadence, as of 2026-08-27)
Weather: The opening window looks kind: mostly sunny and 85–86°F Sunday and Monday, with thunderstorm chances only creeping in on Tuesday. Ashe and Armstrong close their roofs if the sky turns; the field courts wait it out. (National Weather Service New York forecast, as of 2026-08-27)
Venue: USTA Billie Jean King National Tennis Center, Flushing Meadows, New York — hard.
At this Stage
Round of 128, and the start of a goodbye: Monfils's wildcard makes this his final scheduled US Open, twenty years after his first. The bracket is incidental to the occasion — though the winner does get Borges or 14th-seeded Tien next, in an eighth suddenly missing its biggest name. Every Monfils match from here is potentially the last one, which is exactly the energy that has always made him appointment viewing in this borough. Play runs Sunday through Tuesday.
