According to reports (cited by Leicester Mercury), Chelsea are keen on the player as well but they face competition from the Foxes.
Ben Chilwell has been linked with a move away from Leicester for a while now and if he decides to move on, the Foxes will need a new left-back.
Therefore, the interest in Telles is not surprising.
It will be interesting to see if they make a move for the Porto star at the end of this season. He is thought to be valued at around €40m and Leicester City can certainly afford that.