Bundesliga: Mainz at Bayern Munich, 8:30 a.m. Saturday, FS1. This will be striker Robert Lewandowski's 100th Bundesliga game for Bayern Munich, a stretch in which he has scored 80 league goals. At the moment, though, he's mired in controversy over public criticism of Bayern's lack of PSG-style huge-money signings. There's drama at the Allianz Arena.

Premier League: Arsenal at Chelsea, 7:30 a.m. Sunday, CNBC. You'd have to go back six years to find the last time Arsenal managed a victory at Stamford Bridge, and Arsenal has barely scored a goal at Chelsea since. The Gunners defeated the Blues in the FA Cup Final and the Community Shield over the past 12 months, triumphs unlikely to be repeated Sunday.

Premier League: Everton at Manchester United, 10 a.m. Sunday, NBC Sports. Everton is in the middle of a brutal stretch. Away games at Chelsea and Manchester City and a home match against Tottenham have brought the Toffees just one point. In midweek they endured an awful European loss. A trip to Man United, still undefeated and atop the league, won't help.

Bundesliga: Cologne at Borussia Dortmund, 11 a.m. Sunday, FS2. Dortmund may be atop the Bundesliga for the moment, but it's been a rough week, with a frustrating draw against Freiburg followed by a Champions League loss at Tottenham. Cologne, meanwhile, lost in Europe as well. But 20,000 fans showed up in London, creating an energy around the club.