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Real Madrid legend determined to 'make Chelsea suffer' ahead of Jose Mourinho reunion
IKER CASILLAS claims Porto only have Chelsea on their mind ahead of their crucial Champions League Group G clash.
Casillas is Spain's record appearance maker
The Spanish goalkeeper played under Jose Mourinho at Real Madrid, where the two fell out, and Casillas is now at his former manager's old club.
The two seem inextricably linked, and the 34-year-old stopper admitted the whole team have become obsessed with repeating their win over Chelsea.
"Porto has not prepared for a defensive match because that will be a disaster and almost certainly result in a defeat," Casillas said.
If they cannot be separated over 90 minutes, then the result between Kiev and Tel-Aviv will play a part in who goes through, but if either side wins then they are assured of winning the group.
And while Chelsea are in their worst slump in as long as anyone cares to remember, Casillas knows Mourinho better than to underestimate them.
"Chelsea are not playing with the same level that they played in the past seasons but the Blues have an enormous squad that is capable of beating any European rival," Casillas added.
"It's never easy to play English clubs in their own stadiums with the atmosphere there. But this match is decisive for us.
"After failing in the last match it’s now obligatory that we go to London and show our best side and, as a minimum, take one point on the pitch."