Philadelphia enjoys a unique basketball rivalry among the Big 5, a group of five local Division I universities: Temple, Saint Joseph's, Penn, Villanova, and La Salle. The Big 5 teams have played many of their games at the Palestra, Penn's venerable gymnasium. The Big 5 rivalry is unique because each of the schools has a rich basketball history and each school is located within a fifteen-mile radius of all of the others. Each of the Big 5 schools has made at least one appearance in the NCAA Final Four, and two have won national titles—La Salle in 1954 and Villanova in 1985, 2016, and 2018. Villanova's victory over Georgetown in the 1985 championship game is widely considered one of the greatest upsets in NCAA basketball history. Temple, Penn, Villanova, and Saint Joseph's all rank among the top 50 Division I teams in number of games won. Three Big 5 players have won the Naismith College Player of the Year award: Lionel Simmons of La Salle in 1990, Jameer Nelson of St. Joseph's in 2004, and Jalen Brunson of Villanova in 2018. Saint Joseph's and La Salle compete in the Atlantic 10, while Penn and Villanova are perennial powers in the Ivy League and the Big East. Temple joined the American Athletic Conference in all sports when the original Big East split into two leagues in 2013 (it had joined Big East football a year earlier). Prior to the Big East split, Temple had been a member of the Atlantic 10, and it still holds the most A-10 Basketball Tournament championships.