Scores Pierk - all cards - GW 479
U22
U23
| Colorado Rapids 3 - 3 Minnesota United
90'
| FC Dallas 3 - 3 Real Salt Lake
66'
| CD Popular Junior FC SA 1 - 0 CA Bucaramanga
JUN
87'
| CD Universidad Catolica 4 - 1 CD Cobreloa
21'
| KAA Gent 2 - 0 Sint-Truidense VV
90'
80'
| YR KV Mechelen 3 - 2 Royal Standard de Liege
90'
| Al Ain SCC 5 - 1 Yokohama F. Marinos
| Kawasaki Frontale 1 - 1 Kashiwa Reysol
89'
| FK Austria Wien 2 - 1 TSV Egger Glas Hartberg
45'
59'
59'