It's not long until the third edition of the World Test Championship comes to a dramatic conclusion in June and South Africa and Australia have plenty to ponder before the one-off final at Lord's.
With just over two months until the ICC World Test Championship Final at Lord's, South Africa and Australia will be deep in thought formulating their plans on how best to claim victory in the one-off match.
While both teams have reasonably settled squads, the make-up of their final XIs are likely to only be determined once the sides arrive at Lord's and get the chance to peruse the pitch that will be used and see what London's early summer weather has to offer.
We take a look at what both teams might look like for the eagerly-awaited battle for the mace and the questions that need to be answered before the first ball is bowled in north London on June 11.
South Africa
Potential South Africa XI: Aiden Markram, Tony de Zorzi, Ryan Rickelton, Tristan Stubbs, Temba Bavuma (c), David Bedingham, Kyle Verreynne (wk), Marco Jansen, Gerald Coetzee, Keshav Maharaj, Kagiso Rabada
Other options: Dane Paterson, Wiaan Mulder, Corbin Bosch, Kwena Maphaka, Matthew Breetzke, Keegan Petersen, Senuran Muthusamy
South Africa's top six looks relatively settled, with Tony de Zorzi's recent Player of the Match performance for Western Province putting him in the box seat to partner experienced opener Aiden Markram in a strong batting line-up.
Skipper Temba Bavuma has been batting at No 5 in recent tests and will likely continue in this role to provide stroke-maker Tristan Stubbs every opportunity to shine coming in one spot earlier at No 4.
The luxury of having star allrounder Marco Jansen come in at No 8 provides the Proteas with extra depth to their batting and the tall left-armer will form a dangerous fast bowling attack alongside pace spearhead Kagiso Rabada.
With first-choice spinner Keshav Maharaj all but certain to lead the Proteas' spin attack at Lord's, there will be much debate surrounding who earns the spot as third seamer to provide support to Rabada and Jansen.
Fiery right-armer Gerald Coetzee could be in contention if he can overcome his recent injury concerns, while selectors might opt for young southpaw Kwena Maphaka if they want to hit Australia with a pure pace barrage.
The other option would be to take a chance on 30-year-old allrounder Corbin Bosch, who starred against Pakistan in December in his only test appearance when he took four wickets in the first innings and contributed an unbeaten 81 with the bat coming in at No 9.
The Aussies won't have seen much of Bosch, so the confident right-armer could prove a shrewd left-field choice for selectors. Anrich Nortje would also come into consideration if he decided to return to the test fold.
Australia
Potential Australia XI: Sam Konstas, Usman Khawaja, Marnus Labuschagne, Steve Smith, Travis Head, Cameron Green, Alex Carey (wk), Pat Cummins (c), Mitchell Starc, Nathan Lyon, Josh Hazlewood
Other options: Josh Inglis, Scott Boland, Beau Webster, Cooper Connolly, Nathan McSweeney, Matthew Kuhnemann