Tottenham Hotspur reportedly sent scouts to Besiktas' 3-1 win over FC Porto in the UEFA Champions League to watch Cenk Tosun, Anderson Talisca and Oguzhan Ozyakup.
That's what a source "close to Besiktas" reportedly told Emre Sarigul of Turkish-Football.com.
Per the report, Tosun's price has gone up from €13.5 million to €20 million since the summer, when he came close to moving to Crystal Palace, per the man himself:
"Crystal Palace offered €13.5 million on transfer deadline day.
"Had they made the bid a week earlier I would be playing in the Premier league right now.