This is a game from the Capel Speed Chess Challenge from back in 1988 showing GM Jonathan Speelman (Specimen, so called through a misprint in The Times and yet somehow very apt!) versus young Matthew Sadler in the year he achieved his IM.
Despite following a professional career away from chess, Matthew reached 2693 in 2017, then No 46 in the world.
Commentating is GM Raymond Keane (The Penguin)