Ronnie Whelan Testimonial.
http://www.independent.co.uk/sport/football-fractured-cheekbone-sidelines-beardsley-newcastle-forward-injured-in-testimonial-while-blackburns-premier-marksman-provides-encouragement-on-his-return-1460338.html
Aye, think you're right.
Wasn't it very shortly after Keegan signed him. I seem to recall he missed the early part of that first season back in the Premier League.