What happened: Max Verstappen finished third in Austin with only intermittent radio contact with his engineer. The connection dropped repeatedly during the United States Grand Prix. He called the ongoing failures a disaster.

Why it matters: Lost radio time forces late calls on pit timing and tire management. A second straight race with the same fault points to a systems issue rather than a one-off glitch.

What to watch: Red Bull now faces pressure to fix the radio system before cars return to the track. Attention turns to whether the fault carries into the next race weekend.