Ludogorets Razgrad and Paris Saint-Germain both led on matchday one before being pegged back to 1-1; neither will want to make the same mistake in their first ever encounter.
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Matching 1-1 draws were a feature of the opening night in Group A and the two teams who lost leads in those games, PFC Ludogorets Razgrad and Paris Saint-Germain, now come face to face in Bulgaria.
• The clubs have not met before and this is the first time Ludogorets have faced opponents from France.
• Two years ago, in the Bulgarian side's only previous group stage campaign, they lost all three away fixtures so their draw at FC Basel 1893 on matchday one represented an improvement. They led through Jonathan Cafú's goal before the hosts cancelled it out with 11 minutes remaining.
• After winning the Bulgarian title for the fifth season in a row, Ludogorets scored 15 goals in the qualifying campaign to book their return to the group stage.
• They first dispatched FK Mladost Podgorica 2-0 at home and 3-0 away. Against FK Crvena zvezda they followed a 2-2 draw at home with a 4-2 extra-time victory away. Wanderson claimed three of the goals in that away leg.
• Edinson Cavani's first-minute header against Arsenal FC on matchday one was Paris's fastest UEFA Champions League goal. The Gunners equalised late on and more disappointment arrived for the Parisians in added time when Marco Verratti, along with Oliver Giroud, was sent off.
• The French champions, who have Unai Emery in charge after replacing Laurent Blanc in June, lost 3-2 on aggregate (0-1 away) to Manchester City FC in last spring's quarter-finals. It was the fourth consecutive year they met defeat at that stage.
• In the group Paris scored 12 goals and conceded only one, in an away reversal against Real Madrid CF.
• They won all three of their other away games in the competition – netting three without reply at FC Shakhtar Donetsk on matchday two and five at Malmö FF on matchday five. In the round of 16 they prevailed 2-1 at Chelsea FC after the same score at home.
• Paris's first-ever match in UEFA competition came at Vasil Levski stadium 34 years ago with a 1982/83 European Cup Winners' Cup first-round tie against PFC Lokomotiv Sofia. They went down 1-0 in Sofia but won 5-1 at home; this is their first encounter with Bulgarian opponents since then.
Coach and player links
• Claudiu Keșerü played for FC Nantes (2004–10), Angers SCO (2010–13), and SC Bastia (2013/14).
• Jesé came on as a substiture during Real Madrid's 4-0 home thrashing of Ludogorets in the UEFA Champions League group stage on 9 December 2014.
• Ludogorets are nine matches unbeaten in all competitions, winning six of them.
• Jonathan Cafú, on target twice in the 5-1 victory at Vereya on Friday, has scored four goals in his last three appearances.
• On 20 September, the Eagles progressed to the last 16 of the Bulgarian Cup, defeating POFC Botev Vratsa 4-0 away from home.
• Gustavo Campanharo scored his first goal for the club against Botev Vratsa.
• Paris lost 2-0 at Toulouse FC on Friday. With the game goalless, Emery's team had Serge Aurier sent off a minute into the second half.
• Paris have suffered as many Ligue 1 defeats this season, two, as they did in the whole of their title-winning campaign last term.
• Cavani struck four times before the break in Paris's 6-0 victory at SM Caen on 16 September.
• The Uruguay forward has nine goals in nine appearances for club and country in 2016/17.
• Christopher Nkunku extended his contract by two years, until June 2020, on 15 September.
• Lucas Moura has found the net in three of his last four Ligue 1 outings – all of his goals bizarrely coming in the 67th minute.