The Blues are still involved in three competitions as they approach the end of the season, but Bertrand believes that he and his teammates will be able to cope with the workload.
The 23-year-old told The Sport Review: "We just prepare and recover as each game comes.
"We focus on the next game. Being at a big club like this, we're used to playing in nearly every competition."
Chelsea play their third game in six days when they face Rubin Kazan in the Europa League on Thursday.