Star Australia batter Steve Smith on Monday expressed his concerns over the future of the five-day game ahead of the World Test Championship final against India beginning in London on Wednesday. 

The rapid growth of franchise cricket around the world has put pressure on the international schedule. The smaller nations are not playing enough Test cricket with India, Australia and England effectively driving the longest format.

It was, though, ironical that Smith spoke about the uncertain future ahead of the biggest game in Test cricket -- the WTC final.

“Yes, I am slightly concerned. But, hopefully Test Cricket still stays alive and well. I think it's in a good place at the moment," he said ahead of the title clash against India. 

“Some of the games we've seen recently have been pretty amazing. So, for me as, I suppose, a traditionalist, someone that loves Test cricket, I hope it still remains at the front of all the Board's mind and stays alive and well for some time to come.”

The Australians had a lengthy first training session here on Monday and there were enough signs that Scott Boland will play in place of injured Josh Hazlewood. All-rounder Cameron Green will be the fourth pace bowling option besides Mitchell Starc and skipper Pat Cummins.

London was witnessing sunny weather over the last week, but Monday was cold and overcast through the day. 

Talking about the WTC final, Smith said he expects the Indian attack to pose a stiff challenge irrespective of the combination they go with.

Not so long ago in India, Australia's preparations revolved around Ravichandran Ashwin and Ravindra Jadeja but now they also need to be wary of Mohammed Siraj and Mohammed Shami.

“I think they've got a good mix obviously of quality seam bowlers. Shami and Siraj, probably their two main guys who have really good skills and I think the Dukes ball suits them nicely. 

“And then obviously their spinners as well, who bowl really well in all conditions. So, I think they're a good attack and yeah, we're going to have to play well against them this week,” he said.

Smith has been part of the ODI and T20 World Cup-winning Australian teams, but unlike those events, the WTC final is a one-off game in a two year cycle.