Red Bull Salzburg striker Dimitri Oberlin is attracting big Premier League interest.
Oberlin, currently on-loan at FC Basel, has shone in Switzerland and in the Champions League this season.
Estadio Deportivo says Tottenham and Arsenal have intensified their pursuit over the last 48 hours, suggesting January offers are being prepared.
It's also emerged Basel have chosen not to pursue a permanent deal for Oberlin, so opening the door for an auction.
The young forward was available to the Swiss for €5m, but his price is set to skyrocket as Arsenal and Spurs show their hand.