Former West Ham United midfielder Valon Behrami is being targeted by Borussia Dortmund. The 29-year-old Napoli midfielder will be made available this summer with Tottenham Hotspur, Dortmund and Inter Milan all expressing an interest. According to reports in Italy, Swiss international Behrami will be available for ˆ20 million (16 million) . Dortmund are keen on the player, but at 29-years-old they are not willing to pay as much as is being asked, according to transfermarket.de. Behrami has a contract at Napoli until 2017, but with Barcelona’s Javier Mascherano, Tottenham’s Sandro and Bayern Munich’s Javi Martinez all linked with the club he could find himself way down the pecking order. Inter are reportedly favourites to land the former Hammer because of a pre-existing relationship between Mazzarri and Behrami. Mazzarri took Behrami to Napoli while in charge  of the club before leaving for Inter. Behrami, who is known for his high-energy performances, has made 21 Serie A appearances for Napoli this season.