The 1968 Men's National Tennis League (NTL) was the inaugural series of professional tennis tournaments founded by George McCall, among others: Rod Laver, Roy Emerson, Ken Rosewall, Andrés Gimeno, Pancho Gonzales and Fred Stolle.
The 1968 Men's National Tennis League (NTL) was the inaugural series of professional tennis tournaments founded by George McCall, among others: Rod Laver, Roy Emerson, Ken Rosewall, Andrés Gimeno, Pancho Gonzales and Fred Stolle. (en)
La National Tennis League (NTL) è stata una serie di tornei di tennis fondata da George McCall a cui partecipavano tra gli altri: Rod Laver, Roy Emerson, Ken Rosewall, Andrés Gimeno, Pancho Gonzales e Fred Stolle. (it)