The Spaniard has become embroiled in a face-off with club owners Tom Hicks and George Gillett over their unwillingness to sanction transfer activity before they arrive on Merseyside for the clash with bitter rivals Manchester United on December 16.
"If they did lose to Porto, and then Manchester United come and win at Anfield like they did last season, then all of a sudden they would look at the Premier League and think with all the money they spent in the summer they´re not getting a return," Lawrenson told BBC Radio Five Live.
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