Manchester United have triggered their option on Ander Herrera's contract.
The Spain international's deal was due to finish next summer but he is now tied to the Old Trafford club until 2019.
Atletico Madrid have been showing interest in the 28-year-old but Herrera is happy in Manchester and wants to continue working with coach Jose Mourinho.
Herrera's representatives have held discussions with United over a longer contract but by taking up the extra year option now, the club protects their asset until talks resume.