Big Match Feature: Bayern v Arsenal
For the second season running, Arsenal travel to Bayern Munich having lost by two goals at home although a repeat of last season's 2-0 win would level their last-16 tie.
Having once again established a two-goal cushion in the away leg, Bayern Munich will be looking to repeat last season's aggregate victory over Arsenal FC, although the five-time winners will be on their guard having lost to the Gunners in Munich 12 months ago.
Goals from Toni Kroos and Thomas Müller gave Bayern a first-leg victory in north London this time round meaning Arsenal must become only the third team to overturn a first-leg home defeat in the Uefa Champions League era.
The Gunners have hope, however, having triumphed 2-0 at the Fußball Arena München in last season's round of 16 second leg, although they lost the tie on away goals.
Previous meetings In last season's round of 16, Bayern took the upper hand with a 3-1 first-leg win in London thanks to goals from Kroos (7), Müller (21) and Mario Mandžukic (77), Lukas Podolski (55) pulling one back against his former side.
Arsenal came close to wiping out that home defeat as Olivier Giroud and Laurent Koscielny scored in Munich, but bowed out on away goals as Bayern progressed to the quarter-finals for the fourth time in five seasons.
The lineups on 13 March 2013 at Fußball Arena München were: Bayern: Neuer, Alaba, Dante, Van Buyten, Lahm, Luiz Gustavo, Javi Martínez, Kroos (Tymoshchuk 81), Robben, T Müller, Mandžukic (Gomez 73).
Arsenal: Fabianski, Jenkinson, Mertesacker, Koscielny, Gibbs, Walcott (Oxlade-Chamberlain 72), Arteta, Cazorla, Ramsey (Gervinho 72), Rosický, Giroud.
Bayern also beat Arsenal 3-2 on aggregate in the 2004/05 round of 16, winning 3-1 at home in the first leg, and beat the Gunners 1-0 in the 2000/01 second group stage.
Match background This is Bayern's sixth successive last-16 appearance; their 2011 reverse against Inter Milan, when they won 1-0 in Milan but lost 3-2 in Munich is the sole defeat in that run.
The German champions won five of their six games in Group D to qualify in first place, losing at home to Manchester City on matchday six with their passage to the next stage already guaranteed.
That ended Bayern's ten-game Champions League winning run - a competition record that started following that second-leg defeat by Arsenal - and was only their third defeat in their last 24 home games in the competition with the other 21 games all ending in victory.
This is Bayern's third meeting with English opponents in 12 months; they also took on Chelsea in the Super Cup on 30 August in Prague, winning 5-4 on penalties after a 2-2 draw.
Franck Ribéry and Javi Martínez got Bayern's goals.
They have lost their last two games at home to English sides, and not won in three fixtures, drawing 1-1 with Chelsea after extra time in the 2012 Champions League final before losing on penalties.
Although this was played on their own ground, it was classed as a neutral venue.
Bayern's record at home to English teams is W10 D5 L3; overall it is W16 D14 L12.
Bayern lifted the European Champion Clubs' Cup with a 2-0 final triumph against Leeds United in 1975, but have since lost finals to Aston Villa (0-1, 1982), Manchester United (1-2, 1999) and Chelsea (1-1, 3-4 pens, 2012).
As Barcelona coach, Guardiola's record against Arsenal was W2 D1 L1.
His team lost 2-1 in north London in the 2010/11 round of 16 first leg but won the return 3-1.
Arsène Wenger's team, in the last 16 for the 14th successive year, have been eliminated in the round of 16 in each of the last three seasons, also losing 4-3 on aggregate to AC Milan in 2011/12.
The Gunners have won on three of their last five visits to Germany, with the other two ending in draws.
The 1-0 victory at Borussia Dortmund on matchday four extended Arsenal's record away to Bundesliga sides to W5 D4 L5; overall it is W14 D5 L10.
In their other away games in group F, Arsenal beat Olympique de Marseille but lost at SSC Napoli on matchday six to finish as runners-up behind Dortmund.
The defeat was only the second in the Gunners' last eight away games, qualifying included, with five victories.
Arsenal's last success at this stage came in 2010 when they recovered from a 2-1 defeat at FC Porto to win 5-0 in London.
That was their third successive victory in the round of 16.
That 2010/11 Inter defeat is the only time in 23 Uefa competition ties that Bayern have lost overall having won the first leg away.
Furthermore, Arsenal have never overturned a home first-leg defeat in European competition.
They have lost only two such matches: against Bayern last season and VfL Borussia Monchengladbach in the 1996/97 Uefa Cup first round, when they lost both legs 3-2.
Bayern's shoot-out record in Uefa club competition is: 5-4 v Chelsea FC, 2013 Uefa Super Cup 3-4 v Chelsea, 2011/12 Champions League final 3-1 v Real Madrid CF, 2011/12 Champions League semifinal 5-4 v Valencia CF, 2000/01 Champions League final 9-8 v PAOK FC, 1983/84 Uefa Cup second round 4-3 v Åtvidabergs FF, 1973/74 European Cup first round Arsenal's shoot-out record is: 7-6 v AS Roma, 2008/09 Champions League round of 16 1-4 v Galatasaray AS, 1999/2000 Uefa Cup final 3-2 v UC Sampdoria, 1994/95 Uefa Cup Winners' Cup semifinal 4-5 v Valencia, 1979/80 European Cup Winners' Cup final Team ties Podolski played for Bayern from 2006 until 2009, scoring 15 goals in 71 league games.
Either side of that spell he spent a total of six years with 1.
FC Köln and in ten games against Bayern was only once on the winning side.
Per Mertesacker scored Werder Bremen's goal in a 3-1 home defeat against Bayern on 29 January 2011.
After Arjen Robben's equaliser, the defender's own goal put Bayern 2-1 in front.
During five years in Bremen Mertesacker faced Bayern 16 times, winning only twice.
Mertesacker and Claudio Pizarro were team-mates at Bremen between 2008 and 2011, Mesut Özil joining them in 2008/09 and 2009/10.
Tomáš Rosický scored 20 goals in 149 Bundesliga games for Dortmund between 2001 and 2006, winning the title in 2001/02.
Mertesacker, Özil and Podolski are Germany team-mates with Manuel Neuer, Jérôme Boateng, Philipp Lahm, Bastian Schweinsteiger, Kroos, Müller and Mario Götze.
Robben scored in Chelsea's 2-0 win at Arsenal on 18 December 2005.
In his three years at Stamford Bridge, Robben faced the Gunners on four occasions and never lost.
Ribéry plays for France alongside Bacary Sagna, Abou Diaby, Giroud, Koscielny and Mathieu Flamini.
Müller scored in Germany's 2-1 win in a Paris friendly against a France team who included Ribéry, Sagna, Koscielny and Giroud.
Lahm, Podolski, Mertesacker, Özil and Kroos played for the visitors.
Giroud scored in France's 2-1 friendly win in Bremen on 29 February 2012 against a Germany team who included Boateng, Kroos, Özil, Müller and Manuel Neuer.
Ribéry also played for the visitors.
Martínez and Thiago Alcántara are Spain team-mates of Santi Cazorla and Nacho Monreal.
Thomas Vermaelen and Daniel Van Buyten both play for Belgium.
Serge Gnabry was in VfB Stuttgart's youth team until 2011.