Serie A leaders Inter Milan earned their fourth straight league win after beating Lecce 2-0 at San Siro, ensuring they would remain four points clear of Juventus until after Christmas.The hosts had plenty of chances to go in front in the first half and Yann Aurel Bisseck finally made the breakthrough just before half-time.Hamza Rafia had a header saved as Lecce searched for an equaliser, but Nicolo Barella doubled Inter's lead and the visitors were reduced to 10 in the final stages when Lameck Banda was sent off.Juventus kept pace thanks to substitute Dusan Vlahovic's towering header in the 81st minute to hand the visitors a 2-1 victory over Frosinone.Juve teenager Kenan Yildiz had opened the scoring 12 minutes into his full Serie A debut, but saw it cancelled out by Jaime Baez six minutes into the second half.Roma moved up to sixth with a 2-0 victory over nine-man Napoli, who dropped to seventh after a nightmare second half saw them concede goals to Lorenzo Pellegrini and Romelu Lukaku as well as having Matteo Politano and Victor Osimhen - on the day it was announced he had signed a new deal tying him to the reigning Serie A champions until 2026 - sent off.Bologna returned to the top four with a 1-0 victory over Atalanta, Lewis Ferguson becoming Scotland's all time top-scorer in Serie A with his 11th goal in the competition.Cagliari remain in the relegation zone after Antoine Makoumbou saw red in the 51st minute at Verona, where the hosts took advantage of his dismissal to secure a 2-0 victory with goals from Cyril Ngonge and Milan Duric.Udinese's trip to Torino looked to be headed toward a goalless draw until Oier Zarraga scored in the 81st minute only to see his late opener cancelled out by home midfielder Ivan Ilic