By ERIC OLSON
AP Sports Writer
Tennessee has mostly gone unchallenged while winning 23 of its first 24 games. The Vols have won 15 straight and are the new No. 1 team in three polls this week. Yale’s Jake Gehri slugged an Ivy League-record four home runs, including two grand slams, and had 11 RBIs against Princeton on Sunday. Michigan set a Big Ten record with four straight home runs against Nebraska on Friday. Texas Tech’s Kurt Wilson stole home for the winning run against Texas on Friday and hit a grand slam for a walk-off win over the Longhorns on Sunday.