Wolfsburg at Bayern (2:30 PM EST, Friday): The Bundesliga begins on Friday with the once and future kings of Germany hosting Wolfsburg at Allianz Arena. Wolfsburg finished fifth in the Bundesliga last season and are one of the few clubs in the Bundesliga capable of producing a result against Bayern. But Pep Guardiola is fielding a less than healthy side as Robert Lewandowski begins his tenure with Bayern as Javi Martínez, Thiago Alcantara, Rafinha and Bastian Schweinsteiger are all out.

Real Madrid at Atlético Madrid (4:30 PM EST, Friday): Real Madrid wants to win six trophies this season and though they're already one-for-one, they have a lot of work left in the second leg of their Spanish Super Cup tie at Atleti. James Rodríguez scored the first goal of the first leg, but Raul García equalized for Atleti. Cristiano Ronaldo is set to play after another injury scare on Tuesday.

Arsenal at Everton (12:30 PM EST, Saturday): Everton ran Arsenal off the pitch late last season at Goodison Park when it looked like they could take their Champions League spot and the stakes are similar this season despite it being just the second match of the season. Arsenal has a UCL qualifier on either side of this match, which gives Roberto Martínez every chance to take the full three points.

Bayer Leverkusen at Borussia Dortmund (12:30 PM EST, Saturday): Dortmund finished 10 points ahead of Leverkusen last season but just one point clear in 12-13 and staving them off will be far more difficult as Jürgen Klopp begins life without Lewandowski.

Seattle Sounders at Portland Timbers (5:00 PM EST, Sunday): The best rivalry of the MLS is always worth watching regardless of where the clubs are in the table.

Liverpool at Manchester City (3:00 PM EST, Monday): The top two clubs in the EPL in 13-14 meet up in an early test that Brendan Rodgers remodelded roster is unlikely to be ready for as City continues to keep the status quo with extensions for nearly every player in their core except for Yaya Touré.