England manager Fabio Capello thinks Napoli are a team to watch out for in the title race this season.
Napoli moved into second on Sunday with a thrilling 4-3 win against Lazio.
They are now three points behind League leaders Milan with seven games remaining.
"It's all still open," Capello said. "Inter's commitments in the Champions League could be brought to bear. They will go through to the semi-finals. There is a lot of difference in quality between Inter and Schalke.