S.S. Lazio will look to overhaul a two-goal UEFA Europa League quarter-final deficit at home against Fenerbahçe SK, who are within sight of a first European semi-final.
• Ogenyi Onazi's dismissal early in the second half changed the complexion of the first leg when the sides met for the first time on 4 April. Fenerbahçe forced home the advantage, hitting the upright for a second time before Pierre Webó's 78th-minute penalty edged them ahead. Dirk Kuyt's late second could prove decisive.
• Lazio's record in nine games against Turkish sides is W6 D1 L2 (W3 D1 L0 at home – W3 D0 L2 in Turkey). They have yet to win a home match against a Turkish club by a margin of more than one goal, and must also play this decisive leg behind closed doors – the second term of a two-fixture punishment due to incidents at their round of 32 decider against VfL Borussia Mönchengladbach.
• Fenerbahçe have played 14 games against Italian sides with the record W4 D0 L10 (W4 D0 L4 at home – W0 D0 L6 in Italy). They have lost all of their six encounters in Italy by margins of two goals or more.
• Lazio last reached the quarter-finals of a UEFA competition in 2002/03, when they beat Fenerbahçe's neighbours Beşiktaş JK (1-0 home, 2-1 away) in the UEFA Cup last eight but lost to FC Porto in the next round.
• Lazio coach Vladimir Petković encountered Aykut Kocaman's Fenerbahçe while in charge of Samsunspor, the sides drawing 0-0 in Istanbul in October 2011.
• Petković's BSC Young Boys, featuring Lazio left-back Senad Lulić, eliminated Kocaman's Fenerbahçe from the 2010/11 UEFA Champions League third qualifying round, winning 1-0 in Istanbul after a 2-2 draw in Berne. "As a coach, this is probably my greatest victory ever," Petković said.
• Only two clubs have ever overturned a two-goal first-leg deficit in the UEFA Europa League knockout phase – Fulham FC against Juventus in the 2009/10 round of 16 (1-3, 4-1) and FC Steaua Bucureşti in this season's round of 32 against AFC Ajax (0-2, 2-0; 4-2 on pens).
• Unbeaten in Europe this season up until the first-leg defeat by Fenerbahçe, Lazio have yet to lose at home in the 2012/13 UEFA Europa League. Their record of W5 D1 includes four wins by margins of two goals or more.
• Fenerbahçe are unbeaten in five UEFA Europa League away games (W4 D1) and have not conceded in their last four European matches on the road – three 1-0 wins and a 0-0 draw.
• Fenerbahçe have now reached the quarter-finals of all three major UEFA club competitions, having played in the last eight of the UEFA Champions League (2007/08) and European Cup Winners' Cup (1963/64). They lost both ties, though it took a replay against MTK Budapest to decide the latter.
• Lazio's biggest success in this competition came when they reached the 1998 UEFA Cup final, losing 3-0 to Serie A rivals FC Internazionale Milano in Paris. They won the final edition of the UEFA Cup Winners' Cup the following season.
• Lazio became the first team, out of 32 participants, to fail to score in the first leg of a UEFA Europa League quarter-final.
• A hat-trick against VfB Stuttgart in the round of 32 second leg moved Lazio's Libor Kozák above SSC Napoli's Edinson Cavani at the top of this season's UEFA Europa League scoring list. The Czech striker has managed eight goals in nine games (and only six starts) since the start of the group stage.
• Lazio are the highest scoring side left in the competition with 19 goals since the start of the group stage, one fewer than eliminated Inter (Chelsea have scored 24 in the same period, but 16 of them came in the UEFA Champions League). Eleven of those strikes have come in the first half, with four more in the first 15 minutes after the break.
• Midfielders Mehmet Topal, Cristian and Caner Erkin are the only players who have featured in all 11 of Fenerbahçe's games since the start of the group stage. None of the three have played the full 990 minutes; Mehmet is the only player to have made 11 starts.
• Midfielder Hernanes is the only Lazio player to have featured in all 11 of their games, making ten starts.
• Lazio's Lorik Cana spent 2010/11 with Galatasaray AŞ before moving to Rome. His side drew 0-0 away and lost 2-1 at home against Fenerbahçe.
• Lazio's coach since June, Petković won a Yugoslavian title as a midfielder with home-town club FK Sarajevo in 1984/85 before moving to Switzerland, where he played at a lower level and coached AC Bellinzona, Young Boys and FC Sion, as well as moving to Turkey to take charge of Samsunspor.
• Kocaman made his name with Fenerbahçe as a striker, winning two titles in an eight-year stint (1988–96). He moved into coaching at Istanbulspor AŞ and – following spells at Malatyaspor, Konyaspor and Ankaraspor AŞ – became Fenerbahçe's director of football. He then took over as coach in 2010, winning the title in his first season and the Turkish Cup in the next campaign.
• Czech coach Zdeněk Zeman was in charge at Lazio (1994-1997) and Fenerbahçe (1999-2000).
• Lazio have never featured in a penalty shoot-out in UEFA competition.
• Fenerbahçe's only previous UEFA club competition shoot-out is:
W 3-2 (away) v Sevilla FC, 2007/08 UEFA Champions League round of 16
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