Looks like a case of mistaken identity, or a complete fabrication. No American newspaper is reporting this, and it makes zero sense from a Timbers standpoint.
American newspapers: Management of the American Portland Timpers Club approves a offer from the #الأهلي Saudi club to annex the Argentine games maker (Sebastian Blanco/Sebastian Blanco) 🔶 Portland Administration waiting for the player approval
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UPDATE: Debunked by Jaimie Goldberg on Twitter on more than one occasion.