Ole Gunnar Solskjaer warned "wasteful" Manchester United to be "more clinical" after they edged into the FA Cup quarterfinals with a hard-fought 1-0 win against West Ham on Tuesday, reports AFP. Solskjaer's side was well below their best in a scrappy fifth round tie at freezing, snow-dusted Old Trafford. But a fine finish from Scotland midfielder Scott McTominay ensured United advanced to the last eight for a seventh successive season. United last won the FA Cup in 2016 and McTominay's third goal in three games kept them in the hunt to lift the trophy for the 13th time. Burnley suffered a surprise exit as second tier Bournemouth won 2-0 at Turf Moor.