Holger Rune was left to regret tweeting a map of the US Open site to point spectators towards his first-round match.
In what may be an ominous sign for his US Open rivals, World No 1 Carlos Alcaraz believes he's a much better player now than when he won the tournament last year.
The US Open singles draws were announced on Thursday, revealing a host of tantalising opening round matches.
Kevin Anderson made a positive start in the US Open qualifiers, defeating Oleksii Krutykh in straight sets.
The US Open has no plans to alter its scheduling to prevent matches from finishing in the early hours.
Two-time champion Venus Williams and former world number one Caroline Wozniacki have received wildcards for the US Open.