Philadelphia Union head coach John Hackworth is unsure if veteran goalkeeper Oka Nikolov will be returning in 2014.

The 39-year old former Macedonia international joined the Union from Eintracht Frankfurt on a six-month deal in June but could return to Germany to chase an assistant coaching role according to an interview with Hackworth on

Hackworth said that Nikolov, who spent almost two decades with Frankfurt, was considering retirement but would make a decision by the end of 2013.

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