Birmingham City have completed the signing of former Middlesbrough midfielder Adam Clayton on a free transfer, the club have confirmed via their official website.

Aitor Karanka has wasted no time in strengthen his squad following his appointment at St. Andrew's this summer, ahead of their opening day clash with Brentford in than less two weeks' time.

George Friend, Jon Toral, Ivan Sanchez, Jonathan Leko and Andres Prieto have arrived at St. Andrew's, with Clayton now becoming their sixth signing of the summer.

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Clayton is no stranger to Karanka, with the experienced midfielder being brought to Boro by the Spaniard back in 2014.

The 31-year-old featured 241 times during a six-year spell at the Riverside, and helped the club win automatic promotion to the Premier League under Karanka in 2015/16.

Clayton has now made the move to Birmingham, putting pen to paper on a two-year deal at St. Andrew's with the option of a further year.

Clayton is another experienced signing who will add stability and steel to the spine of Blues' squad, and it is a positive arrival given his links with Karanka and how well he's played under the Spaniard in the past.

Here, we take a look at Birmingham fans' reactions to this arrival...