article_snippet: Celtic's Efe Ambrose leaves the field dejected as St Johnstone celebrate their midweek win at Celtic Park . '
article_snippet: Celtic blew a chance to extend Celtic lead over Aberdeen to nine points on Wednesday by losing 1-0 at home to St Johnstone.
article_snippet: St Johnstone's Steven MacLean holds off Celtic's Jason Denayer during the game at Celtic Park in midweek .
article_snippet: St Johnstone's Murray Davisdon clears the ball from Celtic's Virgil van Dijk during the midweek clash . '