"I feel like people just don't know what to do with their lives," said 2020 US Open semifinalist Jennifer Brady, herself returning from injury.

Before each day's play at Flushing Meadows, we'll preview three must-see matches.

The Spaniard knocked out the No. 3 seed in a decisive tie-break to set a quarterfinal with Mackenzie McDonald Thursday.

Félix Auger-Aliassime and Milos Raonic lead fellow ATP stars Matteo Berrettini, Holger Rune, and Frances Tiafoe in a rousing rendition of “O Canada.”

“I have to have a conversation with myself,” said the Canadian, who reminded everyone of his serving strength Monday night.

In Montreal, Jennifer Brady saved two match points in a win over Jelena Ostapenko.

The top-ranked American man dropped to 4-3 on the year in major matches, while the Swede picked up his first Top 10 win in 11 attempts.

The former No. 3 battled back from a set down to defeat Austria's Dennis Novak in four sets at Wimbledon.

The former Top 10 player upset No. 5 seed Miomir Kecmanovic in the first round of the grass-court ATP 250 in 's-Hertogenbosch.

Injury after injury has kept the 32-year-old away from the ATP Tour, but that could change come June.