Philadelphia Union announced on Wednesday that forward C.J. Sapong has been officially diagnosed with a concussion and a fracture in the zygomatic bone in his left cheek. Sapong will see a specialist this week to determine the length of his rehab.

Sapong was injured near the end of the first half during the team’s season opener against Colorado Rapids on March 7. He was taken off for Cristian Maidana to start the second half.