The full-back was given his bow by Kenny Dalglish and he didn’t disappoint, turning in an excellent display at Anfield as the Reds recorded an emphatic 3-0 win.
To mark the anniversary, we want to put your memories of that evening to the test in our quiz below.
You have four minutes to name the 10 other Liverpool players who started alongside Flanagan that night, as well as the one substitute who came onto the pitch for the Reds.
Good luck!