A bizarre own goal at the death in the first leg has left Young Boys needing a first win in Russia to have any chance of making it past CSKA Moskva in the race for a group stage place.
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The omens do not seem promising as BSC Young Boys come to Russia needing to overturn a 1-0 deficit to make it past PFC CSKA Moskva to the UEFA Champions League group stage.
• The clubs had not met in UEFA competition prior to the first leg.
• CSKA have now won all three of their previous games against Swiss clubs. They recorded a 3-0 victory at FC Lausanne-Sport in the 2010/11 UEFA Europa League group stage and were then 5-1 winners at home.
• Young Boys suffered their first defeat in three home games against Russian clubs in the first leg (W2 D0 L1) and lost both of their previous games in Russia by two-goal margins: 3-1 at FC Zenit in the 2010/11 UEFA League round of 32 and 2-0 at FC Anji in the 2012/13 group stage.
• CSKA are unbeaten in three UEFA home games (W1 D2); Young Boys are without a win in nine European away fixtures (D2 L7).
• CSKA entered the 2017/18 UEFA Champions League campaign in the third qualifying round, easing to a 3-0 aggregate win against AEK Athens FC.
• CSKA have a 100% record in the final stage of UEFA Champions League qualifying, prevailing in 2004/05, 2006/07 and 2015/16. You could also add 1992/93, when they beat FC Barcelona to reach the group stage though that was under a very different format.
• The Army Men qualified directly for the group stage in 2016/17, their tenth campaign in the competition proper and fourth in a row. Pitted against AS Monaco FC, Bayer 04 Leverkusen and Tottenham Hotspur FC, they bowed out after three draws and three losses.
• Young Boys also started this season's campaign in the third qualifying round, knocking out FC Dynamo Kyiv courtesy of a 90th-minute goal from 18-year-old substitute Jordan Lotomba. That earned a 2-0 win on the night and, having lost 3-1 in Ukraine, victory on the away-goals rule.
• Young Boys also saw off Ukrainian opposition in last season's third qualifying round, edging past FC Shakhtar Donetsk on penalties; they then lost 9-2 on aggregate to VfL Borussia Mönchengladbach.
• This is Young Boys' fifth UEFA Champions League campaign and third play-off – they have never reached the group stage. Their previous play-offs came against Tottenham Hotspur FC (6-3 on agg) in 2010/11 and Gladbach 12 months ago. Young Boys did reach the semi-finals of the 1958/59 European Champion Clubs' Cup, losing 3-1 over two legs against Stade de Reims.
• Both Young Boys and CSKA qualified for the 2017/18 competition by finishing second in their respective leagues last term.
• CSKA's Aleksei Berezutski could make his 100th UEFA club competition appearance in this game, while YB's Steve von Bergen is in line to make his 50th.
Team and coach links
• Georgi Milanov spent the second half of 2015/16 on loan at Swiss side Grasshopper Club.
• Alexander Gerndt and Pontus Wernbloom played together for Sweden.
• Belarusian Viktor Goncharenko is the youngest ever coach to lead a team in the UEFA Champions League, setting the record ten seasons ago aged 31. Five times a title winner as boss of BATE Borisov, the club where his playing career ended at 25, Goncharenko has spent the past four seasons in Russia, taking the reins at CSKA in December 2016.
• Adi Hütter made his name at minnows Grödig, leading them from the second tier to third in the Austrian Bundesliga in the space of two seasons. A midfielder best associated with Austria Salzburg, he promptly left Grödig for RB Salzburg, winning the league and cup double in his only campaign there. Hütter has been at the Young Boys helm since summer 2015.
• CSKA's shoot-out record is W0 L1:
6-7 v Ferencvárosi TC, 1994/95 UEFA Cup Winners' Cup first round
• Young Boys have won both of their penalty shoot-outs in UEFA competition:
4-2 v FC Shakhtar Donetsk, 2016/17 UEFA Champions League third qualifying round
4-1 v FC Zimbru Chisinau, 2012/13 UEFA Europa League second qualifying round