Chelsea are reportedly lining up Ajax stars Nicolas Tagliafico and Andre Onana as cheaper alternatives to Ben Chilwell and Jan Oblak.
The Blues are looking to strengthen their squad with a host of new signings this summer but currently look set to pay over the odds for their top targets.
Chelsea have already secured the signings of Timo Werner and Hakim Ziyech, with the pair arriving at the club for a combined total of £86.4 million.
Frank Lampard has now turned his attention to playmaker Kai Havertz, with the German star already agreeing to personal terms ahead of a move.
Blues chief Marina Granovskaia is believed to be in negotiations with Bayer Leverkusen regarding a transfer fee, but Kai is not likely to be the last big-name targeted.
The Blues are desperate for defensive reinforcements this summer with left-back a priority, while Frank also wants to replace No1 Kepa Arrizabalaga.
The Daily Mirror acknowledge Bn and Jan as first-choice signings but suggest hefty price tags may force Chelsea to shop around.
Leicester could demand as much as £80 million for Chilwell, which would match the fee Manchester United paid for Harry Maguire last year when they made the centre-half the world’s most expensive defender.
And the latest report claims Atletico Madrid management value Oblak at £100 million, although there have been suggestions his xit clause could even be as much as £110 million.
Nicolas and Andre are therefore considered much more affordable options, valued at around £22.5 million and £30 million respectively.