Football managers believe Virgil van Dijk's £75m transfer to Liverpool will raise prices during the January window.
Liverpool have confirmed Van Dijk will complete his move from Southampton on January 1, 2018 and will wear the No 4 shirt at Liverpool.
The agreed fee for Van Dijk is a world-record sum for a defender, topping Manchester City's deal to sign Kyle Walker in July, and rival managers have been weighing in with their reactions to the blockbuster deal.