With world No.1 Ashleigh Barty preparing to lead Australia in this weekend's decider against France in Perth, Court's frosty relationship with TA is again in the spotlight.
Those four players are scheduled to be part of the reverse singles on Sunday, although that can change, before a potentially decisive doubles clash, where the massively experienced Stosur is set to partner Barty against Garcia and Mladenovic.
France will bring Kristina Mladenovic, Carolina Garcia, Alize Cornet, Fiona Ferro and Pauline Parmentier.
Australia has played France six times in Fed Cup history and has a 5-1 edge, but lost when the teams last played in France in 2000.
Beginning her year in Perth at the Hopman Cup, Barty's season will come full circle when she takes to the court at RAC Arena.
Australia has won the Fed Cup title on seven occasions, but the last triumph for the Aussies was almost 45 years ago.
In contrast, Tomljanovic has had a good year and spent most of it inside the world's top 50. It has been hard, sets have been very close and that's really the way that we want it.
"I feel like it's the right decision... within this team everyone brought such a high level in practice". "Kiki has the ability to play well in the big moments", Barty said.
"We know that during a Fed Cup weekend there are a lot of emotions and physically tough matches, so we know we have a lot of options for Sunday", he added.
Ash Barty will try to cap an incredible season by helping her nation win the Fed Cup this weekend at home in Perth.
Mladenovic outplayed Barty 6-2 6-3 in Rome before Barty went on winning spree that also saw her win the French Open, her first major title.
The 2020 Fed Cup will feature a new format, with the world's 12 best teams coming together to battle for the title over one week at the new Fed Cup by BNP Paribas Finals in Budapest on 14-19 April.
Many more fans will have the opportunity to follow the Fed Cup action on television, with the Final broadcast Australia-wide and internationally in some of WA's key tourism markets, including China, the USA, Japan and Germany. "These are the weeks that I love - these are the weeks that I cherish", she said. "We have nothing to lose".
Now unbeaten with a 6-0 record for rubbers this year, she became the first player to contest and win the maximum number of matches on the way to the Fed Cup Final in the competition's current format, having claimed clean sweeps during Australia's victories against U.S. and Belarus earlier this year.
"That final was a great lesson for me and all of us", said Garcia, who won two singles matches in the tie.