"Very concerned about that, there can be no doubts " Hohns told a virtual news conference on Friday. "Hopefully there'll be plenty of Shield cricket, and I believe there will be, programmed leading up to the to the first test match."

"However, that's not going to help some of our players because hopefully they'll be fully engaged in the T20 World Cup, particularly those that play that format for us as well." England, by contrast, have played six tests in Asia -- two in Sri Lanka and four in India -- this year, and will also host New Zealand for a two-match series in June.

"England certainly are playing plenty of test cricket and we haven't got much in the way of anything going. So yes it is a bit of a concern," Hohns said. The close scheduling of matches will once again put the focus on the workload of the fast bowlers, and Hohns hinted Australia might rotate their quicks to get the best out of them.

"We can't ask them to continually back up, day after day and test match after test match and bowl lots of overs. It's only natural they are going to get tired," he said. "Sure, they might feel OK themselves, but we've really got to monitor that a bit harder."