article_snippet: Laurent Koscielny replaced the 24-year-old Brazilian, who is set to miss the crucial FA Cup quarter-final clash with Manchester United at Old Trafford.
article_snippet: Laurent Koscielny replaced Gabriel with just 36 minutes on the clock at Loftus Road on Wednesday night . '
article_snippet: Laurent Koscielny is expected to partner Per Mertesacker as the Gunners travel to play Louis van Gaal's Red Devils on Monday night, looking to reach Wembley for the second successive season.
article_snippet: Per Mertesacker is expected to keep Mertesacker place and partner Laurent Koscileny against Manchester United .
highlights_snippet: Per Mertesacker and Laurent Koscielny set to start at Manchester United .
  