The Guardian believe that Chelsea are lining up a double swoop for Southampton's Nathaniel Clyne and Morgan Schneiderlin.
The pair have been two of the Saints' key players this season and Chelsea believe they could make useful additions at Stamford Bridge.
As a result, the Blues are said to have sent scouts to St. Mary's to track both Schneiderlin and Clyne's progress - and they are intending to lodge bids for them both in the summer.
It is thought that Southampton are reluctant to lose either Schneiderlin or Clyne, but they do realise that they may be powerless to resist offers.
Schneiderlin wants Champions League football, and has made no secret of that desire in the Mirror, whilst Clyne is entering the final year of his contract - meaning that he holds a position of power.
It leaves Southampton in an awkward situation. The South Coast club are desperate to avoid a repeat of last summer, where the core of their squad all departed, but even Ronald Koeman has admitted that they could lose players this summer.
With Chelsea starting to show an interest it is looking increasingly difficult for Southampton to persuade their key players to stay, and they may be set to become victims of their own success once again.