Both players made late appearances during the pre-season friendly with Wigan on Saturday, with Pereira finding the net in a 2-0 win.
The Blues hierarchy are reportedly struggling to replace Tim Howard.
Aston Villa's Jordan Veretout is reportedly wanted by Marseille.
Welcome to this morning's transfer round-up. This edition features 'Laurent Koscielny linked to Bayern Munich again' and 'Valencia's Shkodran Mustafi interesting Chelsea?' plus more, so delve in below.
Garry Monk has insisted that the defender will not be leaving the Championship side this summer, but is it worth lining up a potential replacement?
Internet forums have been abuzz with speculation of a mysterious secret signing being worked on by West Ham United, but is the cat out of the bag?
Gerard Deulofeu featured in Everton’s win against FK Jablonec in a pre-season friendly game on Saturday.
Rafa Benitez is reportedly willing to sell the goalkeeper this summer.
Chelsea have signed N’Golo Kante from Leicester City.
Aston Villa won against Worcester City in a pre-season friendly on Saturday.