Jan 22 : Inter Milan will expect to stretch their lead atop Serie A when they host second-bottom side Pisa on Friday with a fixture that on paper offers a clear chance to put pressure on their rivals who face each other in some mouth-watering matches. While Inter kick off the weekend with an easy game, on paper at least, Sunday sees a couple of blockbuster clashes as title-chasers AC Milan visit AS Roma and Napoli travel to Juventus.     Inter lead Milan by three points, while Napoli, who are