1973 U.S. Professional Indoor – Singles
Rod Laver was the defending champion, but lost in the quarterfinals this year. Stan Smith won the title, defeating Robert Lutz 7–6(7–2), 7–6(7–5), 4–6, 6–4 in the final.
What is 1973 U.S. Professional Indoor – Singles subject of?
1973 U.S. Professional Indoor – Singles is subject of U.S. Pro Indoor and 1973 Grand Prix (tennis).