SEATTLE — Shavonte Zellous carried Pittsburgh back to the round of 16. Barely. Zellous scored nine of her 24 points in the final 4 minutes, and Pittsburgh capitalized on Gonzaga’s youthful mistakes in the closing minutes of a 65-60 win in the second-round of the Oklahoma City Regional on Monday night. The 12th-seeded Bulldogs made life extremely difficult for the No. 4 seed Panthers, but it was Zellous and Pitt’s experience coming through at the end. Zellous scored on a pair of drives off Gonzaga turnovers in the final two minutes then hit a pair of free throws to put the Panthers up 63-60 with 15.9 seconds left after another Gonzaga mistake. When Janelle Bekkering’s 3-pointer missed with six seconds left, the Panthers were headed to the regional semifinals for the second straight year.