Everton have posted an interest in Besiktas striker Cenk Tosun. The German-born Turkey international has been a target for Crystal Palace and Newcastle United since last season and has scored 12 goals this term. Sam Allardyce wants a new striker but attracting one in January is not expected to be easy. Tosun has been a key figure in Besiktas's Champions League run this season and they face Bayern Munich in the last 16. Besiktas want £20million for the 26-year-old and while that is not a problem for Everton, Allardyce wants to ensure the striker they bring in can adapt quickly to the Premier League.