The American, elected head of the world governing body last September, replacing Italian Francesco Ricci Bitti, is due to travel to the Brazilian city at the beginning of next month on his way to meetings in Paraguay.

He will visit the Olympic Tennis Centre on the Barra Olympic Park, which will host the sport during this year’s Games, on May 3 and 4 to consult with organisers and will receive updates on aspects such as lighting and the laying of an extra surface on the court.

Currently, the lights, which will be crucial to the venue as matches are due to be played at night, are not yet in place.

Another coat surface also needs to be laid before competition is due begin at the facility on August 6, the day after the Opening Ceremony.

Haggerty's fears follow gymnastics official Ron Froehlich raising “serious concerns” about the ongoing Rio 2016 test event, due to come to a conclusion tomorrow, at the Association of Summer Olympic International Federations General Assembly here on Tuesday (April 19).

Progress has also been an issue at the Velodrome, scheduled to stage track cycling, as the sport’s test event was cancelled due to delays in laying the track.

Haggerty's comments come after the city of Rio de Janeiro cancelled the construction contract for the Olympic Tennis Centre in January due to "intentional delays" on the part of the consortium in charge of building the venue.

“Things are progressing but they are not finished,” he said here at the SportAccord Convention.

“When you have night matches and you don’t have lights, that could be a problem.

“The lights are not yet installed and until they are I will be worried.

“They have a plan in place and we have a team that is dedicated there.

“The Court surface needs another coat and that’s in the works.

“It should have been delivered about the time I arrive.

“I will have meetings with local contractors and having had the experience of running the US Open, I know that sometimes things don’t always look like they will get done but they do.”