|Attempts on target||24||22|
|Attempts off target||24||23|
|D||Club Brugge||Dinamo Zagreb|
|L||Rapid Wien||CSKA Sofia|
Following a 2-0 defeat by the same opponents on Matchday 3, PFC CSKA Sofia need a victory at SK Rapid Wien to be certain of having a chance of qualifying for the UEFA Europa League round of 32.
• Defeat in Vienna would be the end of the road for CSKA, and a draw would also not be enough if Beşiktaş JK take three points at FC Porto.
• The clubs met for the first time on Matchday 3.
• Rapid are yet to lose in five games against Bulgarian teams, with their record reading W3 D2 L0 (W1 D1 L0 at home).
• CSKA have now played seven games against Austrian sides, with a record that reads W4 D0 L3 (W1 D0 L2 in Austria).
• Rapid eliminated PFC Beroe Stara Zagora from this season's UEFA Europa League third qualifying round, drawing 1-1 in the first leg – which was staged at PFC Levski Sofia's Georgi Asparuhov Stadium – and winning 3-0 at home.
• CSKA and Rapid both lost their first two Group L games.
• Rapid's 2-1 defeat by Beşiktaş on 30 September ended a three-match unbeaten run at home this season.
• CSKA have won once in their last six UEFA club competition away games, beating Cliftonville FC 2-1 in this season's UEFA Europa League third qualifying round.
• All six of their UEFA Cup and UEFA Europa League group stage away fixtures to date have ended in defeat.
• Rapid are two goals shy of 300 conceded in UEFA club competition. This will be their 217th UEFA game.
• CSKA are the only side yet to score in the group stage. They have also won fewer corners than any other outfit in the competition, just four in the first three matchdays.
• Rapid coach since 2006, Peter Pacult played for all three of the big Vienna clubs – Wiener SC, Rapid and FK Austria Wien – as a striker. He won two league titles with FC Tirol Innsbruck, as well as earning 24 Austria caps. A losing UEFA Cup Winners' Cup finalist with Rapid in 1984/85, he later coached TSV 1860 München, FC Kärnten and 1. FC Dynamo Dresden, before claiming the Austrian title with Rapid in 2007/08.
• Macedonian coach Gjorgi Jovanovski has not been in charge at CSKA since the day after the 2-0 loss against Rapid, with former defender Milen Radukanov, 37, having been in temporary command while the club seek a long-term appointment.
• Rapid fans will have fond memories of one CSKA old boy, with central defender Trifon Ivanov having helped the club win the 1995/96 Bundesliga title. 'The Bulgarian Wolf' had four separate spells as a CSKA player, winning two titles and a Bulgarian Cup. He also reached the UEFA Cup Winners' Cup semi-finals with both clubs.
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