West Ham United have completed the signing of Dino Mavropanos.
The Greece defender arrives from VfB Stuttgart for an undisclosed fee and has signed a five-year contract.
"I'm really looking forward to the next step in my career," he said. "I will give everything for the shirt.
"I am really happy and excited to be here, and to be back in the Premier League."
West Ham boss David Moyes also said: "I'm pleased to welcome Konstantinos to West Ham.
"We've been looking to add to our centre-half options this summer, so it's good we've been able to bring in an international defender of his ability.
"We're really looking forward to integrating him into the group."