UEFA Champions League statistics
• Barcelona are undefeated in 21 UEFA Champions League home outings, winning 16, since a 2-1 reverse against FC Rubin Kazan on 20 October 2009.
• If he plays the second leg, Víctor Valdés will become the 17th player to make 100 UEFA Champions League appearances. He made his debut in the competition proper in Barcelona's 3-2 home win against Club Brugge KV on 18 September 2002.
• Barcelona are appearing in a record sixth consecutive UEFA Champions League semi-final.
• Lionel Messi has scored 59 UEFA Champions League goals and is behind only Raúl González (71).
• Messi is the only Barcelona player to have featured in all 11 matches.
• Barça have scored 18 goals and had 93 shots on target, both fewer than any other semi-finalist.
• Barcelona have enjoyed 68% of possession, completing 7,209 of their 8,661 attempted passes with an 83% success rate – all, by a distance, higher than any other side.
• Adriano is available following a one-game ban, but Jordi Alba is suspended after his yellow card in Germany. Alex Song and Gerard Piqué's next bookings will incur a ban.
• Barcelona have lost once in 26 home games this season, going down 3-1 to Real Madrid CF in the Copa del Rey on 26 February. They have drawn four and won 21, including two 4-0s, two 5-0s and a 6-1.
• Tito Vilanova's side have scored 77 goals in 26 matches at the Camp Nou this season.
• The Catalan outfit have conceded just twice in their last six home games.
• Vilanova made four changes to the XI beaten in Munich on Saturday as a last-minute Ander Herrera strike restricted the Catalan outfit to a 2-2 draw at Athletic Club. Éric Abidal, Song, Thiago Alcántara and Cesc Fàbregas came in for Marc Bartra, Sergio Busquets, Andrés Iniesta and also Messi, who equalised after coming off the bench.
• Messi's goal was his 24th away Liga strike this term, a new top-flight record. Cristiano Ronaldo registered the previous best of 23 last season.
• Alexis Sánchez also struck in Bilbao to take his tally to five league goals this season; he managed 12 in each of his last two top-flight campaigns at Udinese Calcio and Barcelona.
• Messi has scored in a record 20 consecutive Liga appearances for Barcelona, surpassing the previous mark of ten set by Mariano Martín (Barcelona, 1942/43-1943/44) and Ronaldo (Barcelona, 1996/97).
• The 25-year-old became the first player to score against every other Liga side consecutively before three league games out with a hamstring injury.
• Javier Mascherano has not featured since tearing knee ligaments away to Paris Saint-Germain FC on 2 April.
• Carles Puyol has been out since undergoing surgery on his right knee on 15 March.
• Fàbregas struck his first professional hat-trick as Barcelona beat RCD Mallorca 5-0 on 6 April. It is the first time a Spanish player has scored three in a Liga game for the club since Luis Enrique in 2001.
• Abidal came on as a substitute against Mallorca, his first appearance since a liver transplant on 10 April 2012 (his last game was on 29 February 2012). He made his first start since returning in the 1-0 victory over Levante UD on 20 April.
• Barcelona had conceded at least once in each of their last 13 games in all competitions, their worst ever sequence, before the 2-0 win against RC Deportivo La Coruña on 9 March.
• Barcelona's 19-game unbeaten start to the top-flight campaign – 18 wins, one draw – ended on 19 January when Real Sociedad de Fútbol came from two down to triumph 3-2.
• Messi scored 91 goals for club and country in 2012, surpassing Gerd Müller's calendar year record of 86 set in 1972. He collected a record fourth FIFA Ballon d'Or in January.
• Marc Muniesa damaged knee ligaments in pre-season and is not in the UEFA Champions League squad, though he returned to action in February.
UEFA Champions League statistics
• Jupp Heynckes' side are the top scorers in this season's competition with 26 goals. Their total of 90 shots on target is lower than the other three semi-finalists, and they have had 81 shots wide; more than any other club.
• Mario Gomez scored his 23rd UEFA Champions League goal for Bayern in the first leg, taking him past Giovane Elber's club record of 22. Gomez has 26 in total, including three for VfB Stuttgart.
• Bayern have won 100 corners; the highest total in this season's competition.
• The German club have scored 296 goals in the UEFA Champions League, group stage to final. They have conceded 399 goals in UEFA competition, scoring 746.
• David Alaba's quarter-final, first-leg opener was timed at 25.02 seconds, the seventh fastest goal in UEFA Champions League history.
• Claudio Pizarro's 16-minute hat-trick against LOSC Lille on matchday four was the third fastest in UEFA Champions League history.
• Manuel Neuer has played every minute of Bayern's campaign; Dante and Thomas Müller have featured in all 11 games.
• Mario Mandžukić is available after serving a one-match suspension in the first leg. Javi Martínez, Gomez, Bastian Schweinsteiger, Luiz Gustavo, Dante and Philipp Lahm will incur a ban with their next yellow cards.
• Bayern won 1-0 at home to SC Freiburg on Saturday – thanks to Emre Can's first goal in the Bundesliga – in the process setting new Bundesliga records for clean sheets in a season (20) and most points (84, surpassing Borussia Dortmund's haul of 81 last term).
• Heynckes made ten changes to the side that started against Barcelona, with only Jérôme Boateng retaining his place. Neuer's understudy Tom Starke kept his fourth clean sheet in as many outings this term.
• Bayern have also set Bundesliga records this season for most wins (27) and most away wins (14), while their current 14-match winning run – all in 2013 – is a record within one campaign. They sealed their 23rd German title with a record six games to spare on 6 April having become autumn champions (the side top after 17 matches going into the winter break) with a record three games to spare.
• Heynckes' side have won their last ten games and 21 of their last 22 matches in all competitions.
• Bayern have won 14 out of 15 on their travels in the Bundesliga this season, surpassing the record for most away victories in a campaign that had stood at 11. They have conceded just three times in the process.
• Bayern will meet Stuttgart on 1 June in what is their 19th German Cup final, bidding for a 16th title (SV Werder Bremen are the second most successful with six wins).
• Pierre Højbjerg, at 17 years and 251 days, became Bayern's youngest ever Bundesliga player on 13 April when he made his club debut in the 4-0 win against 1. FC Nürnberg. He surpassed Alaba's record by four days.
• Pizarro became only the second player in Bundesliga history to have been involved in six goals in a single game – he scored four and got two assists – in Bayern's 9-2 home defeat of Hamburger SV on 30 March.
• On 16 January Bayern announced that Josep Guardiola will succeed Heynckes on a three-year deal this summer.
• Toni Kroos (adductor injury, out since 2 April) and Holger Badstuber (ruptured knee ligaments, 1 December) could miss the remainder of the season, though Badstuber began running again on 23 April.
• On the eve of the first leg, Bayern announced that Mario Götze will join from Dortmund in July after the Bundesliga champions triggered the €37m release clause in the 20-year-old's contract. Jan Kirchhoff, a 22-year-old who can play at the back or as a holding midfielder, will link up from 1. FSV Mainz 05 this summer on a three-year deal.
• Bayern's eight straight Bundesliga victories at the start of the season was a new record, surpassing the mark of seven set by themselves (1995/96), 1. FC Kaiserslautern (2001/02) and Mainz (2010/11).
• Bayern started the season with nine straight victories in all competitions – the last time they began with even six, in 2000/01, they claimed the UEFA Champions League.
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