Charles Leclerc’s ageing power unit is unlikely to have contributed to his lack of performance against Ferrari team-mate Carlos Sainz at the Las Vegas Grand Prix, it has been claimed.

Charles Leclerc and Arthur Leclerc's mother, Pascale Leclerc, was caputred smiling while watching her sons driving for Scuderia Ferrari in the FP1 session of the Abu Dhabi Grand Prix. The brothers ...