Gonzalo Higuain scored in his third straight game as Napoli moved up to second in the Serie A standings on Sunday night with a 1-0 win at Chievo.The Argentina forward rattled the post from 20 yards in the opening half but then struck the only goal of the game in the 59th minute.Faouzi Ghoulam's cross from the left found Higuain in the area and his left-footed shot beat Chievo goalkeeper Albano Bizarri.Napoli's fourth successive league triumph lifted them to 18 points - level with Fiorentina, Inter Milan and Lazio.They are two points adrift of leaders Roma, who won 2-1 at Fiorentina.Chievo coach Rolando Maran was sent off for dissent with six minutes remaining.ends