Novak Djokovic has raised the Davis Cup before and believes major changes are required to sustain the 118-year-old competition.
Djokovic, who helped lead Serbia to its first Davis Cup championship in the 2010 final contested in his hometown of Belgrade, believes the current structure is broken.
The Wimbledon champion says change is not only beneficial, but essential to ensure player participation.
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"Obviously the Davis Cup format, as it is, doesn't work anymore," Djokovic said. "There are not many top players that are participating in Davis Cup for many previous years. We have seen a few of us managing to play for our countries. Throughout the whole year, it's a big challenge because of the schedule."
Proposed reforms will create a one week World Cup-style Davis Cup final staged at a neutral site each November.
ITF president David Haggerty's plan will eliminate the traditional 16-team Davis Cup World Group playing home-and-away ties over four weekends throughout the year and replace with an 18-team competition played out over one week each November.
The plan is part of a $3 billion agreement with investment group Kosmos founded by former soccer star Gerard Pique.
The proposed Davis Cup reform will be put to a vote at the ITF's annual general meeting in Orlando, Florida next week.
Indian Wells owner and billionaire entrepreneur Larry Ellison has publicly backed Davis Cup reforms along with Wimbledon, Roland Garros and the US Open. Tennis Australia opposes the plan and is partnering the ATP's aim to revive its World Team Cup competition.
Djokovic told the media in Toronto he completely supports Davis Cup reforms.
"Lots of players in the last 15 years have talked about the urge to change the [Davis Cup] format," Djokovic told the media in Toronto. "Because if you see the last 10 years, you know, the amount of times that the top players played Davis Cup, it was not very often. And it happens, you know, you play one year, and then the next year you don't play.
"It's just the scheduling of this kind of format so far has been pretty bad. And, you know, I was talking about it years ago, and I think that format needs to be changed. And I'm all in favor for that."
Photo credit: Christopher Levy