Chelsea manager Rafael Benitez has pinpointed squad rotation as the area to where his side's title chances lie this season.
Frank Lampard and Eden Hazard were replaced by Oscar and John Obi Mikel in the starting lineup as the Blues ran out 1-0 winners against Norwich City at Carrow Road courtesy of a Juan Mata goal.
Benitez claims he will continue to tinker with his squad in order to keep them fresh and challenge for the Premier League crown.
"It's not easy to keep the same players," said Benitez. "I like to change players and move them around because we have to manage the squad who are really tired.
"I think it's really important to change players and today we had one or two new additions and that was good for the team.
"It's a long, long [title] race so we have to keep doing our job, which is to win games and see what they do. We just have to keep an eye on the table."
Chelsea travel to Everton in their next match on Sunday.
Matt Cotton
