The College World Series begins Friday, with eight teams competing to decide who will earn the right to play for the championship.

The CWS often boils down to manufactured runs. Arizona will have to hammer out four games worth of them just to make the championship series.

The ghosts of the old Pac-12 will be lurking at Charles Schwab Field this weekend when the College World Series opens. Oregon State, UCLA and Arizona will be back in Omaha, where they combined for seven of the 24 national baseball championships won by the conference.