England captain Alastair Cook refused to be drawn on Kevin Pietersen's future in his press conference ahead of the opening one-day international against Australia.
Cook was facing the media for the first time since reports emerged that team director Andy Flower was prepared to move the England Test team forward without Pietersen following their Ashes whitewash.
However, Cook was unwilling to discuss the future as well as his own relationship with Pietersen as he looked ahead to the five-match 50-over series.
"It's very hard for me to talk to you the media about this. It's very hard," said the 29-year-old.
"I can't do that. Confidentiality and stuff like that - what happens in the dressing room stays in the dressing room. I refuse to do that."
Asked if that could be construed as a failure to endorse Pietersen, he replied: "You can regard it as you want. As is the way with the media that happens."
Cook admits the failings of his side in the Ashes have weighed heavily on his shoulders in the week since the whitewash was confirmed in Sydney.
"Obviously when you lose a series 5-0 a lot of things get thrown up and thrown in your face as a captain," he said.
"You start looking at everything and it is important that we do that. What is also important is that it has only been a week since everything happened.
"I would be wrong if I wasn't lying in my bed over the last week or so thinking about stuff I would like to do and how I would like to lead this side forward and the decisions which go with that."
Cook is now looking forward to the one-day series against Australia which starts in Melbourne on Sunday.
"What is important for me is the one-day series at this precise moment in time," he said.
"We know that when I get home from this one-day series a lot of important decisions on how we want to go forward with this Test team, the one-day team and my future - all that kind of stuff - is very important.
"My total focus has to be on us winning games of cricket in this series.
"We have a World Cup in 2015 in exactly the same conditions as we are going to experience here and that has to be given my full thought.
"After this series then you go back on to how do we rebuild the Test side."
Cook will almost certainly be the man at the helm when that rebuild begins, with the left-hander having been given a vote of confidence by the ECB.
"That is reassuring. It is nice knowing that," he said.
"It is nice knowing that you have the opportunity to try and make amends as a captain. I'm desperate to try and do it. The challenge is whether I'm good enough to do it.
"We're going to see over the next couple of years or however long."
Watch England take on Australia in the opening ODI in Melbourne live on Sky Sports 2HD from 3am on Sunday.
Will Kevin Pietersen play in the 2015 Ashes series?