Saudi Pro League side Al-Nassr plan to do further tests on Hakim Ziyech of Chelsea.
The Moroccan winger is in Saudi to negotiate a contract and sign for the domestic club.
However, CBS Sports states there are issues within the deal that must be resolved.
Payment terms with Ziyech are an issue, as is his physical condition due to a knee injury.
Al-Nassr want to ensure that Ziyech is fit enough to contribute, or they will not be signing him.
Chelsea will receive 8 million for the former Ajax Player of the Year if the deal goes through.
