Sheffield United have signed Coventry City midfielder Gustavo Hamer.

He joins on a four-year contract for an undisclosed fee.

"I've played here before with Coventry and I remember the song when the players walk out, it's amazing, thrilling," he told the club's website.

Blades manager Paul Heckingbottom said: "Gustavo is someone I've admired for a few years.

"Mainly because of his high energy, high work-rate performances and his bravery to take the ball in difficult positions.

"His quality has improved year on year and we hope that continues in his time with the Blades."