Celtic manager Brendan Rodgers is looking to improve his defence for next season and the former Liverpool manager is eyeing a reunion with Steven Caulker.
The 25-year-old currently plays for QPR, but he has played under Rodgers at Swansea.
According to reports, the Celtic boss is looking to sign his former player for a knockdown fee this summer and the Scottish champions have already opened talks with QPR.
With Dedryck Boyata out injured for three months, Caulker could prove to be a major bargain if Celtic help him rediscover his form.