Premier League giant Manchester United have announced their first signing of the summer on Wednesday, and it's Eric Bailly. The Ivory Coast international has signed a four-year-deal at Old Trafford, subject to a work permit.

Bailly also becomes the first signing for the club under new manager Jose Mourinho. The 22-year-old has an option to extend his contract with the Red Devils for further two years. He joins United from Spanish side Villarreal for an undisclosed fee.

The BBC, however, has reported that United have paid around Â£30 million to Villarreal to sign him.

"It is a dream come true to be joining Manchester United. To play football at the highest level is all I have ever wanted to do," said Bailley in a statement released by the club. "I want to progress to be the best that I can be and I believe working with Jose Mourinho will help me develop in the right way and at the right club.

"I am looking forward to meeting my new team-mates and to starting this new chapter of my life," the Africa Cup of Nations 2015 winner with Ivory Coast, added.

Mourinho has described the player as a "great natural talent". "Eric is a young central defender with great natural talent," the Portuguese football coach said. "He has progressed well to date and has the potential to become one of the best around.

"We look forward to working with him to help nurture that raw talent and fulfil his potential. Eric is at the right club to continue his development."

Bailly appeared in every game for Ivory Coast as they won the Africa Cup of Nations last year.