The USA international joined Stoke this week before being immediately sent to Utrecht due to UK work permit issues.
Utrecht chief Edwin de Kruijff said: "He's an all-round attacker with a lot of quality.
"He is technically proficient, has a huge craving for the purpose, can manage well with a man at his back and is also reasonably fast.
"A guy like Juan needs to play, but cannot currently at Stoke City. We offer a solution. Fortunate for us."
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