Premier League: Stoke City at Leicester City, 9 a.m. Saturday, NBC Sports. Leicester City continues to roll along with the leaders at the top of the Premier League, despite a punishing stretch of games in December. A win over a Stoke side that is itself pushing for Europe would be as good a sign as any that the Foxes are for real and should be taken seriously as title contenders.

Bundesliga: Borussia Dortmund at Borussia Mönchengladbach, 11:30 a.m. Saturday, FS2. The German winter break is over, and Dortmund knows that any sort of challenge to Bayern Munich will require an impressive string of wins. Mönchengladbach is one of the top teams in Germany, though; a Dortmund loss means it can worry less about a title challenge and more about second place.

Premier League: Chelsea at Arsenal, 10 a.m. Sunday, NBC Sports. Arsenal leads the league and Chelsea is still stuck in 14th, but even so, the Blues have dominated the matchups between the two in recent years. Chelsea fans have accepted that their team won’t defend its Premier League title this season, but they’d love to help ruin the bid of their London rivals.

Serie A: Roma at Juventus, 1:45 p.m. Sunday, beIN Sports. On Oct. 28, Juventus lost 1-0 at Sassuolo. Since then, it’s won 10 consecutive Serie A matches, most of them by three or four goals — an amazing run that’s taken Juve from the bottom of the league back to second place. Roma, too, needs a win to keep pace with the Italian top four. Just slowing Juventus down would be a win.