Barcelona - Despite the presence of Lionel Messi and 14 World Cup winners, the attention will be on the touchline as much as the pitch when Pep Guardiola leads his Bayern Munich side into the stadium he called home for so long on Wednesday.
Guardiola has been to Barcelona's Camp Nou hundreds of times, as captain during an 11-year playing career and most memorably in winning 14 trophies in a four-year spell as the club's most successful ever coach.
The last time he was there, for Barca's Champions League win over Manchester City in February, he sat in his seat, a season ticket in the stands next to his father.