Two perfect records, one thrilling 2-2 at the Olimpico. Manu Koné's double put Roma in control, before Lautaro Martínez dragged Inter back in the second half. Level on 13 points at the break, Gasperini's Roma and Chivu's Inter already look like the teams to beat. We break down their strengths, their flaws and who has the edge in the Scudetto race.