Burnley and Crystal Palace have the most work to do on the retention front, with four of their backline options set to leave the club in the summer.
Meanwhile, Chelsea, West Ham United and Brentford are currently set to lose three defenders each when contracts run out at the end of June.
Yorkshire clubs could look at signing free agents this summer and might be monitoring developments at Premier League clubs to see which players will be available on a free this summer.
And, given the impact of Covid-19 on finances, more clubs could opt to scour the free agent market during the next transfer window as it provides a cheaper alternative.
Middlesbrough signed free agent defender Neil Taylor late last year, with the 32-year-old staying at the club until the end of the season.
Sheffield Wednesday have found free agents a useful method of bolstering their squad, with all of the Owls' additions in the summer either coming via loans, free agents or free transfers from other clubs.
A number of free agents are currently on the market in a number of positions.
Below, is every Premier League defender who is set to be out of contract in the summer - could they opt to make the step down to the EFL or find another Premier League club if they decide to move on? Only time will tell.
5. Cesar Azpilicueta
Cesar Azpilicueta - The Chelsea captain has been at the club since the summer of 2012 but has yet to decide if he will remain at Stamford Bridge beyond this season. Photo: Getty IM=mages.
6. Romain Saiss
Romain Saiss - He has made 194 appearances for Wolves since arriving back in 2016 and is reportedly in talks over a new deal with his current contract up this summer. Photo: Getty Images
7. Jack Stephens
Jack Stephens -The Southampton defender has reportedly agreed a new deal at the club but that has not been confirmed with his current contract due to expire in June.
8. Fabian Schar
Fabian Schar - The Swiss international has been linked with a move to Bordeaux this month with his contract up this summer. Photo: Getty Images