North Carolina and UCLA, both number one seeds and two of the most successful ever college basketball teams, advanced to the Final Four of the NCAA tournament on Saturday. UCLA, seeking its 12th national title, beat Xavier 76-57 to win the West Region and North Carolina, trying to capture national title number five, took the East Region with an 83-73 victory over persistent Louisville in Charlotte, North Carolina. “They're ready to go to San Antonio,” North Carolina coach Roy Williams said of his players, who will play the winner of Sunday's Midwest battle between number one Kansas and upstart number 10 Davidson on Saturday. “It was a great great game. We couldn't feel any better than we do right now.” Tyler Hansbrough, the likely college player of the year, took over when after Louisville erased a 12-point halftime deficit, finishing with 28 points and 13 rebounds before being named Most Outstanding Player in the East Region. His effort allowed North Carolina, the top overall seed in the tournament, to advance after losing in this same round last year. The Tar Heels are 36-2 and have won all four NCAA tournament games in their home state, all by double digits. This will be the 17th Final Four for North Carolina, the sixth for Roy Williams, who also took Kansas to college basketball's big event. The Bruins will meet the winner of Sunday's game between number one Memphis against number two Texas in the South Region final next Saturday. The victories by UCLA and North Carolina kept all four number one seeds alive. __