Will Buckley is closing in on a move to Sunderland – as Adam Clayton completes his switch to Middlesbrough.

The Albion winger was expected to undergo a medical on Wearside today after his club agreed a £2.5 million deal with the Black Cats.

Albion have issued no comment at this stage.

Meanwhile Huddersfield playmaker Clayton, a target for the Seagulls, has completed a four-year deal with Middlesbrough.

Jacob Butterfield heads in the other direction.