The document lists the match schedules for the UEFA Champions League Round of 16 first leg games played on February 13-14 and 20-21, 2013. It includes pairings such as Celtic vs Juventus, Real Madrid vs Manchester United, and Arsenal vs Bayern Munich. The schedules also show the dates and matchups for the second leg games played on March 5-6 and 13-14, 2012, including Borussia Dortmund vs Shakhtar Donetsk, Juventus vs Celtic, and Schalke 04 vs Galatasaray.