Feyenoord coach Mario Been is already eyeing a loan extension for Arsenal attacker Ryo Miyaichi.

Been rushed the 18 year-old into his starting line-up for last weekend's clash with Vitesse Arnhem.

"Our Japanese friend is a very fine player, with great potential. We are happy to give him experience here," said Been.

"How long will he stay at Feyenoord? Well, at least until the end of the season. Then we'll see."

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