sentences:  NAIA tennis nationals for both men's and women's tennis are held in Mobile, which has the largest outdoor public tennis facility in the world, featuring over 50 tennis courts.Spring Hill College's rugby team began playing in 1969 and continues to play today.In 1975 former Spring Hill players formed The Mobile Rugby Football Club and in 1978 began playing at Battleship Memorial Park and changed the name to Battleship Rugby Football Club.