article_snippet: Arsene Wenger was delighted as Danny Welbeck struck a second-half winner to put Arsenal in the semi-finals of the FA Cup with a 2-1 victory over Arsene Wenger former club Manchester United, who were reduced to 10 men at Old Trafford.
article_snippet: But Welbeck handed Arsenal the lead for the second time as Laurent Koscielny beat a diving David de Gea to the ball just outside the 18-yard box and tapped into an empty net just after the hour mark.
article_snippet: Laurent Koscielny was full of praise for Welbeck, who left Laurent Koscielny boyhood club for north London last summer, and provided the killer touch tonight after a blunder from Antonio Valencia.
article_snippet: Danny Welbeck slots home the winning goal after rounding Danny Welbeck former team-mate David de Gea .
article_snippet: Danny Welbeck didn't hold back in Danny Welbeck celebrations after scoring against Danny Welbeck old club for the first time .
highlights_snippet: Danny Welbeck netted the winning goal against Arsene Wenger former club .
  