"You give another guy an opportunity to take your spot and you've got to look if they do well, you could find it hard to get back in the team.
"But that's the way it's and I've just got to deal with that and make sure I'm ready to play.''
Haddin has been under pressure all summer over his performances at Test level and Wade has been touted as his likely replacement should selectors decide to make a change.
Wade will also play in the two Twenty20 internationals against India this week in Sydney and Melbourne, and Haddin said he understood the need to give his deputy a proper taste of international cricket.
Haddin will captain the Prime Minister's XI against Sri Lanka in Canberra on February 3 and knowing that he's in a fight to hold his place in the Australian set-up, promised to rise to the challenge.
"If you give your spot up and someone does well you've got no right just to walk straight back in,'' he said.
"I'm actually looking forward to the PM's game, for someone from Canberra it's a great opportunity to get back and captain that side.
"It's what it is at the moment. I've just got to make sure the next time I get an opportunity again I'm ready to go and I know I will be.''
- AAP