Premier League champions Manchester City travel to Schalke in the UEFA Champions League on Wednesday, with the pair clashing in the first leg of the round of 16.
Atletico Madrid and Juventus also meet on Wednesday in Spain. Cristiano Ronaldo is set to return to the city where he made his name in La Liga.
City remain one of the tournament favourites, but a close title race at home could stunt their European charge.
Wednesday's First-Leg Matches
Schalke vs. Manchester City (8 p.m. GMT/3 p.m. ET)
Atletico vs. Juventus (8 p.m. GMT/3 p.