The Sky Blues are into the quarter-finals against Lyon after beating Real Madrid 4-2 on aggregate.
"We got a great result against a great team," said Sterling after the win. "The most important thing from all the boys was running our socks off. That was one of the main reasons we got the result.
"I think it came down to who wanted it the most – who ran the most. I'm not saying they didn't, but we were extra hungry.
"We've got energy to progress in this competition, energy and fight, and we clearly showed that against Madrid."