Manchester United have reportedly decided to extend the contracts of Daley Blind, Ander Herrera, Ashley Young and Juan Mata.
The quartet currently have less than a year remaining on their existing deals at Old Trafford, but United have the option of triggering 12-month clauses to tie the players to the club until 2019.
According to The Telegraph, United will activate those options should none of the first-teamers willingly decide to pen longer deals at the Premier League side.
Earlier this week, Herrera was linked with a move to Atletico Madrid, with the Spanish giants able to speak to the midfielder as early as January.
However, United are keen to avoid such talks, and adding a year to their respective deals will strengthen the club's position when it comes to any negotiations with interested clubs.