Andrew Robertson, Xherdan Shaqiri and Wijnaldum are three examples of this, with the Reds raiding Hull City, Stoke City and Newcastle respectively in cut-price deals.
It appears to be only a matter of time before the Blades are officially relegated to the second tier after a bitterly disappointing second season in the top flight.
Chris Wilder guided the Yorkshire club to a hugely impressive ninth-placed finish in their first season back in the league for 12 years, defying all expectations in the process.
But the team have managed just four wins this campaign and sit 14 points off safety. Paul Heckingbottom was announced as the club’s interim manager following the recent departure of Wilder.