The National Professional Soccer League (NPSL) was a North American professional soccer league that existed for only the 1967 season before merging with the United Soccer Association (USA) to form the North American Soccer League. It had ten charter members, nine from the United States and one from Canada. To encourage attacking play, the NPSL introduced a new standings points system that was later used by the NASL – 6 points for a win, 3 for a draw, 0 for a loss and 1 bonus point for each of the first three goals scored. The circuit's commissioner was Ken Macker, an American publisher of three Philippines-based newspapers. The name National Professional Soccer League was revived in 1990 and used by a United States professional indoor soccer league.