During the summer of 2006, Ayuso was a member of the Puerto Rico National Team that participated in the 2006 FIBA World Championship. Ayuso scored 106 points with a 21.2 PPG and shot a .629 3-point percentage during the tournament. Ayuso finished tied for fourth in PPG in the 2006 Worlds. Due to his outstanding performance during the 2006 Worlds the Denver Nuggets invited him to the 2006 Training Camp and was added to the Pre-Season roster.