USA international Christian Ramirez was the toast of Aberdeen but his campaign started to fizzle before his abrupt departure on Tuesday.
The California native made the move from the Houston Dynamo to the Granite City last summer and is one of the club's highest earners.
But manager Jim Goodwin revealed he has sent the striker home a week early to "recharge his batteries" after his form has dipped under the former St Mirren boss' tenure.