The Belgium international has returned to Stamford Bridge after a successful season-long stay in the Bundesliga and is now targeting a place in Jose Mourinho's starting XI
The Belgian, who was signed by the Blues in January 2012, spent last season on loan at the German side where he impressed scoring 10 goals in 33 games.
De Bruyne's performances earned him a place in the Belgium national team, and the 22-year-old has hailed his time in Germany as a fantastic learning curve.
“We had a difficult season with a lot of really young players who had almost no experience in the league, so it's very difficult, but I felt I had a good season and played a lot of minutes, and also with the national team which was very important for me,” De Bruyne told Chelsea's official website. “I think I managed to have a good year and managed not to have my own injuries, so I was very happy.
“The Bundesliga is a strong competition. You can compare it to the Premier League, which is probably more physical, it's a lot of running, but every team tries to play good football and always goes for the win.”
Even though he was busy with the Bundesliga campaign, De Bruyne followed Chelsea's performances last season closely.
“I managed to see the results, and some games, but not many because my own schedule was full,” the former Genk winger added. “I spoke to people from the club regularly, and they came to watch games in Bremen, while I also talked to Eden Hazard in the national team also."
Having returned to Stamford Bridge, De Bruyne is looking forward to showing what he can do in a blue shirt now that his loan spell is complete.
“It feels great to be back here now," he said. "I drove back from Belgium with Romelu Lukaku, through the channel tunnel. It's not that far and we enjoyed the trip. I had a good vacation after the season and in the end I was looking forward to starting again to get back to the normal life we are used to as footballers.”