Everton have announced their first major signing under new manager Ronald Koeman.

The club have confirmed the capture of midfielder Idrissa Gueye from relegated Aston Villa.

The Senegal international has agreed a four-year contract after Everton triggered a £7 million pound release clause in his contract. 

📷 PHOTOS: Here’s new signing Idrissa Gana Gueye in the new kit at Finch Farm. #WelcomeIdrissa pic.twitter.com/TaMLZGS80p

— Everton (@Everton) August 2, 2016

Villa are now hoping to use some of that transfer fee to fund a £12 million pound bid for Fulham striker Ross McCormack.