What is the fine-grained topic of the following text: Lendoiro is on war against the clubs that haven’t paid their obligations to Deportivo; there’s a well-known battle against Real Zaragoza, and since Friday the war was extended to Racing Santander; all for the transfer of Sergio Canales. Only return the topic.
Lendoiro's dispute against football clubs over unpaid transfer obligations for Sergio Canales.