Harambee Stars striker Michael Olunga was in action for Kashiwa Ryesol in Saturday's home loss against FC Tokyo.
Olunga, a trusted goal hunter for Kashiwa Reysol, did not manage to find the back of the net as they went down 1-0 at Sankyo Frontier Kashiwa Stadium.
Japan's J1 League resumed with nine matches staged on July 4.
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Tsuyoshi Watanabe scored the goal that separated Olunga's side from their visitors in the 62nd minute with the assist coming from Masato Morishige.
The loss saw Kashiwa Reysol lose ground with the leading sides as they have now dropped to the eighth position on three points following their win in the J1 League opener.