No. 2 Stanford women’s basketball (15-1, 3-0 Pac-12) extended its perfect start to the Pac-12 campaign with a 73-57 win over No. 15 Arizona (12-2, 2-1 Pac-12) in a back-and-forth contest at Maples Pavilion on Monday. After an uncharacteristically slow start in the opening period, Stanford recovered well and held the Wildcats to just seven second-quarter points. The Cardinal capitalized on a sloppy…