1977 U.S. Pro Indoor – Singles

Jimmy Connors was the defending champion, but lost in the final this year. Dick Stockton won the title, beating Connors 3–6, 6–4, 3–6, 6–1, 6–2 in the final.

Source: Wikipedia DBpedia

What is 1977 U.S. Pro Indoor – Singles subject of?

1977 U.S. Pro Indoor – Singles is subject of U.S. Pro Indoor and 1977 Grand Prix (tennis).