American singles players Steve Johnson, Denis Kudla and Brian Baker have had their appeals approved by the International Tennis Federation's Olympic Committee to compete at next month's Rio Games.
Johnson, Kudla, Baker and Jack Sock were on the provisional entry list released by the ITF last month, with their participation contingent on either playing Davis Cup or a successful appeal.
The 26th-ranked Sock is taking part in the Davis Cup quarterfinal against Croatia this week. Johnson is No. 25, Kudla is 102nd, and Baker 179th.
The top American man, No. 16 John Isner, chose to skip Rio, as did No. 29 Sam Querrey, who is coming off a Wimbledon quarterfinal appearance and an upset of Novak Djokovic.