Razvan Rat has revealed that he is excited by the challenges that face him at new club West Ham United.
The 32-year-old Romanian international joined the Hammers on a free transfer from Shakhtar Donetsk last month.
"For me it is a challenge and new motivation," the defender told Shakhtar's official website. "For the new team, I will try to prove to them that I am coming from a team that played in the Champions League and that I have a high level of skill."
Rat, who spent 10 years with Shakhtar, has signed a one-year contract with West Ham.
