Matchday 3 of the Champions League will see the spotlight focused on the Camp Nou where Pep Guardiola revisits his former club with Manchester City.
A win in France is vital if Juventus wish to top their Champions League qualifying group and avoid the mistakes they made last season.
Injuries are a worry for Borussia Dortmund's Thomas Tuchel ahead of their Champions League match against Sporting Lisbon.
Chris Sutton has warned the Parkhead faithful their side might struggle to reach the heights they did against Manchester City on Wednesday.
Juventus boss Massimiliano Allegri says he has no concerns about how his side are playing ahead of their UCL match at Lyon.
Bayer Leverkusen coach Roger Schmidt has praised Tottenham's Son Heung-Min before their clash in the Champions League.