Manchester City defender Ruben Dias says the centre-halves are happy with rotations this season.
With Manuel Akanji, Nathan Ake, Aymeric Laporte and John Stones to select from as well as Dias, Pep Guardiola has a plethora of options in the central defensive positions.
Ahead of Tuesday's Group G clash with Borussia Dortmund, the Portuguese defender described the most important factor in our defensive solidity.
"The mentality we have in our group," he said.
"In the end it is another challenge. To be training with some of the best opponents in the world.
"Even if you have all the routines in training, when you actually play it can be different. The way we work together - I might play on the left or right, then you can play two games and the third you're not playing - that reveals the amount of quality we have.
"And the mentality we have - whatever happens we keep going. The main thing is for the team to be successful and we have that in our mind always."