Lazio drew 0-0 with their guests Napoli, the defending champions of Serie A, on Sunday. Both teams struggled to create chances in a match between the top two teams in the league standings from last season. Lazio thought they had taken the lead just seconds before halftime with a backheel shot from forward Valentin Castellanos, but the goal was disallowed for offside. Lazio currently sits in sixth place in the league with 34 points, two points behind fourth-placed Atalanta and tied with fifth-placed Fiorentina, who are set to host Inter later today. Napoli is in ninth place with 32 points.