The ATP Tour has reached an agreement with Davis Cup organisers which will help end the need for two men's team competitions in the space of six weeks.
Tennis Australia is finalising plans for a mixed team event to replace January's ATP Cup as the ATP forges an alliance with the Davis Cup, which concludes in late November.
ATP executive chairman Chris Kermode said the prospect of staging the two male team events a few weeks apart was "insane" when the concept of the ATP Cup was first mooted in 2018.
The International Tennis Federation (ITF), which runs the Davis Cup with its investment partner Kosmos, has been in regular contact with the ATP ever since.