rewrite this title ‘Never in doubt’ – From dismay to delight as Allen walks back to chair only for red to drop

Summarize this content to 2000 words in 6 paragraphs “Mark Allen benefitted from a slice of luck when a red he thought he’d missed fell in during his first-round match against He Guoqiang at the Scottish Open. Watch and stream the Scottish Open live on Eurosport and discovery+.”