"A lot of this stuff which has been stolen is irreplaceable and you can't put a price on it," said a club spokesman. "Jerzy is obviously devastated.
"We are talking about the memorabilia of someone's career and also a lifetime.
"Jerzy was made famous by what he did in the Champions League and for someone to have gone into his house and stolen it is despicable.
"On behalf of the club and the player we would ask anyone with information to contact either us or Merseyside police."
