Serie A: Napoli at Juventus, 1:45 p.m. Saturday, beIN Sports. Juventus has won a club-record 14 consecutive Serie A games but is still two points back of Napoli, which has itself won eight in a row. This game will have the feel of a championship match; the winner will have the inside track on the title, while the loser will have to hope for the winner's impossibly good form to end.
Premier League: Leicester City at Arsenal, 6 a.m. Sunday, NBC Sports. Leicester is no longer an underdog, not after stomping Manchester City 3-1 away from home last week. Arsenal, now five points back, desperately needs a win to stay in the title race. The Gunners are the only team to take Leicester apart all season, winning 5-2 in September. They must do it again to keep hope alive.
Premier League: Tottenham at Manchester City, 10:15 a.m. Sunday, NBC Sports. City is reeling after its destruction at Leicester's hands last week, but Tottenham is quietly sitting in second place. Manger Mauricio Pochettino has Spurs closer to a title than they have been for a half-century. If the team's low-key title challenge is to continue, it needs to keep City reeling.
La Liga: Celta Vigo at Barcelona, 1:30 p.m. Sunday, beIN Sports. Celta Vigo's all-out style has won it a cult following and led to a few offense-minded clashes with Barcelona, one of Europe's best attacking teams – including a 4-1 win for Celta in September. The visitors are dealing with a ton of injuries, though, including influential forward Nolito, and have won just one of seven La Liga games.