Commentary from the National Stadium, Hampden Park on the first Scottish Cup semi-final between St Johnstone and Celtic, with kick off at 12.30pm. At 3.00pm the focus falls on the Scottish Football League: Hamilton play Gretna, Clyde are at home to St Johnstone, Partick Thistle face Dundee, Queen of the South play Livingston and Airdrie Utd travel north to face Ross County. Full commentary, analysis and debate introduced by Richard Gordon.