MIAMI -- Matt Miazga has yet to debut for Chelsea since his January transfer from the New York Red Bulls of MLS, but the 20-year-old American believes his game has improved just by practicing with the English champs, and says he hopes to one day become "the best American player."

"The set up is great over there -- I feel like even in training I'm getting so much better working with all these world-class players," Miazga told ESPN on Monday in South Florida, where the U.S. U23 national team is preparing for its two-leg playoff against Colombia for a berth at this summer's Olympics.

"I just have to be patient, and when I get opportunities take them and slowly impress the coaching staff and just establish myself."