Second-half goals from Steven Gerrard and Yossi Benayoun gave nervy Liverpool a 2-0 victory that was only secured once Wolves had been reduced to 10-men.
That came when Stephen Ward was eventually penalised for a second bookable offence, referee Andre Marriner at first getting the wrong man and cautioning Christophe Berra.
Liverpool players persuaded the official to check with a linesman, the error was corrected and the hosts were able to take full advantage of the situation.
Copyright (c) PA Sport 2009, All Rights Reserved.
Do YOU want to write for GiveMeSport? Get started today by signing-up and submitting an article HERE: http://gms.to/writeforgms