Chelsea boss Jose Mourinho says all his players have to be consistent if they are to secure a regular place in his squad.
The Blues have endured a very disappointing start to the new campaign as they lie 15th in the English Premier League.
And the Portuguese has urged his players to show consistency ahead of today's Champions League game away at Porto.
"Zero [untouchables this season]," Mourinho told reporters.
"To be untouchable you have to be consistent. You have to be a fantastic player but you have to be consistent. We have fantastic players, the players who gave us the title last season, no doubts about it, but football is about today, not about yesterday.
"In football you have to be consistent in your performance, consistent in your emotion. To be a winner you don't need to win all the time, you lose, you cannot win all the time, but you need a strong mentality every game, every day.
"In this moment I don't have untouchables.
"I have very good players, players I like very much. I like my squad, I like their qualities, their human qualities, they are a very good group of guys. That's a privilege to work with a group I like so much, no doubts about it, but untouchables, only consistency can give you that."