Red Bull Racing and four-time Formula 1 world champion Max Verstappen are engaged in active contract discussions, but sources familiar with the situation say financial terms and performance-related clauses remain unresolved, leaving the outcome of the negotiations genuinely uncertain.

Team principal Christian Horner declined to confirm or deny the substance of the talks at a pre-race media briefing in Monaco, choosing instead to describe the relationship between the team and its driver as "as strong as it has ever been." He did not provide a timeline for any announcement, and declined to say whether the two sides were close to an agreement.

Verstappen made an unannounced visit to the Red Bull factory in Milton Keynes last week — his first since retirement speculation began circulating in earnest — but left without speaking to reporters. A person with knowledge of the visit said it had been kept off the team's public calendar deliberately. "Nothing has been decided," the person said. "Both sides are still working through what they each need."

When asked directly on three separate occasions over the past fortnight whether he intends to continue racing beyond the current season, Verstappen has declined to confirm his plans each time. "I will make an announcement when the time is right," he said after Sunday's race. He did not elaborate further and resisted attempts by reporters to draw him on the details.

Verstappen, 27, has spoken publicly on multiple occasions about the importance of sustained motivation in his continued participation in the sport. In an interview published last year, he said he had no interest in racing "just for the sake of it" if he felt his commitment was not fully engaged.

Red Bull is the only team Verstappen has raced for in Formula 1. He joined the senior team in 2016 and has won four consecutive world championships. The commercial and sporting implications of his departure — should he choose to leave — would be significant for a team that has built much of its sponsor and media positioning around his profile.

The uncertainty has prompted some paddock observers to note that champions who intend to stay typically say so without hesitation. Horner's avoidance of a direct answer, combined with Verstappen's own studied neutrality on the subject, has sustained speculation through the first half of the season.