A starting lineup filled with underclassmen has not prevented Kentucky from reaching the top of the AP poll. Playing with the No. 1 ranking for the first time since the 2009-10 season, the Wildcats face St. John’s as part of the Big East/SEC Challenge at Rupp Arena on Thursday night. Paced by a starting five made up of three freshmen and two sophomores, Kentucky (6-0) has scored 84.4 points a contest and won its games by an average of 30.0.