Ferrari power-unit upgrade adds intrigue to Monza GP

Ferrari's second ADUO power-unit upgrade will be used by Hamilton and Leclerc at its home race, with reported gains of about 15 horsepower but uncertain real-world impact. Hadjar's wrist injury rules him out, giving Lawson a second straight Red Bull opportunity; McLaren remain favored, while Verstappen, Antonelli's possible penalty and Mercedes' pace are central storylines.