Arsenal are watching FC Cartagena defender Cala.
Full name Juan Torres Ruiz, Cala has been watched by Arsenal scouts in Spain's Segunda Liga this season, says Marca.
The 21 year-old is tied to Sevilla and joined Cartagena on-loan in August.
He burst onto the scene last season with Sevilla, playing in the Champions League and also scoring in the Liga, in his first appearances at senior level,