The 23-year-old, who spent the last season on loan at Reading, says that it was a great experience playing against the likes of PSG's Edinson Cavani and Barcelona's Lionel Messi in the last edition and he is eager for similar experiences in 2016.
"My debut was our first game of the tournament," he told Chelsea's official website.
"It was against Uruguay and it was obviously tough but marking Cavani was a great experience. We played Paraguay after that and lost 1-0 again but we really felt we could have got a result in those games.
"Then playing against Messi was a dream come true. When he had the ball, the movement around him was electric because everybody believed he could find them. One minute you're watching him on TV, amazed at what he can do, and the next you're the one trying to stop him.
"And we did, kind of! He didn't score or get an assist which was good. It was a tough group, shown by the fact Argentina got to the final, Paraguay the semi-finals and Uruguay the quarters, but overall we performed well. We just didn't get the right results."