What happened: Mercedes drivers Kimi Antonelli and George Russell finished P4 and P5 respectively in the opening practice session for the 2026 Monaco Grand Prix. The team focused on incremental confidence building on the tight street circuit, finishing behind a dominant Ferrari 1-2 led by Charles Leclerc.

Why it matters: With Kimi Antonelli currently holding a 43-point lead over Russell in the championship, establishing early rhythm in Monaco is critical for maintaining his title momentum. The session saw two red flags, highlighting the high risk of the venue where Mercedes looks to bridge a half-second gap to the front-running Scuderia.

What to watch: Teams will return for FP2 as they refine setups for the all-important Saturday qualifying session.