The 1999 USL D3 Pro League was the 13th season of third-division soccer in the United States, and was the third season of now-defunct USL D3 Pro League, and its first since the name change to United Soccer League.
The 1999 USL D3 Pro League was the 13th season of third-division soccer in the United States, and was the third season of now-defunct USL D3 Pro League, and its first since the name change to United Soccer League. (en)
The 1999 USL D3 Pro League was the 13th season of third-division soccer in the United States, and was the third season of now-defunct USL D3 Pro League, and its first since the name change to United Soccer League. (en)