Tien vs Monfils — a farewell appearance against one of the game's fastest risers
Preview · Montreal (ATP Masters 1000) · Round of 64 · Wednesday 5 August 2026
This is the match of the round for atmosphere and the most lopsided on paper. Gael Monfils is 39, ranked No. 347, here on a wild card, and playing this tournament for the fifteenth and final time; his win over Kamil Majchrzak on Monday night, 6-4, 6-4, was his first tour-level victory since Monte-Carlo in April. Learner Tien is 20, the world No. 19 and the 12th seed, and represents almost exactly the profile of player who has replaced Monfils at the top of the game. For the Frenchman this is a last chance to make a memory at an event he is visiting for the final time. For Tien it is a match he is expected to win, and a chance to arrest a poor run at just the right moment.
The matchup
They have never played each other on tour, which is itself a marker of the years between them. Tien is a left-hander whose game is built on depth, disguise and an unusually mature sense of court position for his age; he does not overpower opponents, he outlasts and outmanoeuvres them. Monfils, even now, remains one of the most naturally athletic movers the sport has produced, and his win over Majchrzak was built on serving, not scrambling — he took twenty-six of thirty-one points behind the first delivery. That is the version of himself he needs again, because a long, grinding match against a player half his age is not a contest he can expect to win.
Form & hard courts
Tien's year is defined by a fortnight in Melbourne. Seeded 25th at the Australian Open, he beat Daniil Medvedev 6-4, 6-0, 6-3 in the fourth round to become the youngest man in the quarter-finals there since Nick Kyrgios in 2015 and the youngest American to reach a major quarter-final since 2002, having won the Next Gen Finals in Jeddah shortly beforehand. Since then the graph has flattened: a second-round loss to Marton Fucsovics at Wimbledon and a first-round defeat by Adrian Mannarino in Washington, 7-5, 6-4. Monfils has won four matches all season, but Monday's was his 146th at Masters 1000 level, the most by any man never to win one of these titles, and it made him the second-oldest man to win a match at this tournament.
The deciding factor
Rally length. If Monfils can keep the points short with his serve and the occasional flat forehand from the middle, he can stay level for a set and let the crowd do some work. Once the exchanges pass six or seven shots, the age gap becomes the whole story: Tien is one of the best young defenders in the game and is happy to play thirty balls, while Monfils cannot sustain that repeatedly across two or three sets at 39. The American's only real risk is emotional — playing an occasion rather than an opponent.
The call
Tien in straight sets, with medium-high confidence. Monfils has enough serving and enough goodwill in the building to make one set competitive, but the physical demands of a best-of-three against this opponent point firmly one way.
