A quarterfinal spot will be at stake when Felix Auger-Aliassime and Learner Tien clash at the Halle ATP 500 on Wednesday. First-round competition is also wrapping up with a showdown between Ben Shelton and Lorenzo Sonego.
Learner Tien vs. (2) Felix Auger-Aliassime
Auger-Aliassime’s performances on grass have been a mixed bag over the years. Twice the fourth-ranked Canadian has finished runner-up in Stuttgart, but his last four Wimbledon results are first round, first round, first round, and second round. Auger-Aliassime’s current grass-court swing is off to a mediocre start, as he lost to eventual runner-up Kamil Majchrzak in the ‘s-Hertogenbosch quarterfinals before beating Nuno Borges 6-3, 3-6, 6-3 in round one of the Terra Wortmann Open.
Up next for Auger-Aliassime on Wednesday is a first-ever meeting with Tien, who defeated Max Schoenhaus 6-2, 6-4 on Monday. The 19th-ranked American is coming off a stellar clay-court season, during which he won the Geneva title and reached the third round at Roland Garros before falling to eventual finalist Flavio Cobolli. Tien may be a grass-court novice compared to Auger-Aliassme, but the left-hander’s style should work extremely well on this surface. Auger-Aliassime could be in trouble.
Pick: Tien in 3
(3) Ben Shelton vs. (LL) Lorenzo Sonego
This was supposed to be Shelton vs. Nick Kyrgios, but the Aussie withdrew because of a knee injury — this after being unable to play a Stuttgart doubles match last week due to illness. Instead, Shelton and Sonego will renew a 2025 rivalry that saw them square off at three of the five Grand Slams. Shelton won all three encounters — two deep in a fourth set and another in five. The fifth-ranked American leads the overall head-to-head series 4-1.
Wednesday’s contest should be more straightforward. Shelton kicked off his grass-court swing with the Stuttgart title, whereas Sonego is mired in a dismal slump. The 65th-ranked Italian has won only four main-tour matches in 2026 and lost to Nikoloz Basilashvili 6-4, 6-4 in Halle qualifying. Two full days off should be enough for Shelton following his exploits in Stuttgart, so count on him maintaining momentum.
Pick: Shelton in 2