The Blues are mindful that both N’Golo Kante and Jorginho, who has endured a difficult start to the season, have less than a year remaining on their current deals and believe Alavrez, 24, could be a long-term solution.
The transfer window in the Netherlands also closes 24 hours earlier than most of Europe due to an administrative error made by the Royal Dutch Football Association (KNVB) meaning less time is available to complete a deal.
