Question: Olakunle "Kay" Banjo (born December 3, 1992) is an American soccer player who plays for the Pittsburgh Riverhounds in the United Soccer League (USL), formerly known as USL Pro, is a professional men's soccer league in the United States and Canada that began its inaugural season in what year?
Sentence (from "United Soccer League"): The United Soccer League (USL), formerly known as USL Pro, is a professional men's soccer league in the United States and Canada that began its inaugural season in 2011.
Relevant evidence: Yes