Newcastle United have completed the signing of Republic of Ireland international defender Ciaran Clark from Aston Villa.
The 26-year-old has signed a five-year deal for an undisclosed fee.
"Newcastle is a massive club so I'm really happy to be here," said Clark.
"Importantly, it is a club that is moving in the right direction and pushing for the right things, so I'm really excited to now be a part of that.
"Things seem to have progressed really quickly over the last few days but I'm delighted to have got it all done and be a part of this squad."
Clark came up through the ranks at Villa Park before making his debut in August 2009, while still a teenager.
Over the following six seasons made a further 158 appearances, scoring ten goals.
The centre-back has also won 19 caps for the Republic of Ireland, representing his nation at Euro 2016 this summer.
Newcastle United manager Rafa Benitez added: "Ciaran is a very versatile player, as a left-footed centre-back he can also play left-back and also as a defensive midfielder.
"He has a lot of experience of English football and will add good balance and competition to our squad.
"I am sure he will progress with us here at Newcastle, we are very happy for him to join us."
United, also close to signing midfielder Mohamed Diame from Hull City and that deal could be confirmed within the next 24-hours.
Both players underwent medicals on Tyneside yesterday.