Federer and Nadal ripped top-ranked Djokovic, current president of the ATP Player Council, for failing to contact them over the decision to terminate Englishman Kermode.
The aim of the tennis centre is to develop local talents and boost Qatar’s proficiency in tennis.
Christophe Jean, who helped Osaka when she was a junior, wants at least $2 million of the $10 million of her earnings to date.
The 20-time Grand Slam winner claimed a remarkable 100th career title in Dubai last month.
Federer, 37, dropped one spot to fifth as the top three remained unchanged with Novak Djokovic ahead of Rafael Nadal and Alexander Zverev despite the Serb's third-round exit in California.
Andreescu defeated Wimbledon champion Angelique Kerber to become the first wild card to win the WTA title at Indian Wells.
The 25-year-old Austrian, ranked eighth in the world, had fallen in two prior Masters finals, both in Madrid.
The last date to register for the tournament is March 26.
Nadal, whose longstanding right knee trouble flared up in his quarter-final victory over Karen Khachanov, couldn't take the court for the blockbuster semi-final with Swiss great Federer.
Start-up FoxTenn from Spain claims it can do better than Hawk-Eye by eliminating doubt from the line-call business.
The longtime foes have amassed 37 Grand Slam titles between them.
In Sunday's final Kerber will face Canadian sensation Bianca Andreescu, who beat sixth-seeded Ukrainian Elina Svitolina.
The Swiss ace is on a collision course with three-time champion Nadal.
The Swiss player stretched her WTA match winning streak to 12, with six of those coming against top-10 players.
Roger Federer and Rafael Nadal will be vying to set up a blockbuster semifinal.