UEFA Champions League Matchday 4 schedule, live stream, storylines: How to watch UCL on Paramount+

Aston Villa are top of the Champions League table

The UEFA Champions League returns this week with a high-profile set of games that could make Matchday 4 the most entertaining round of the league phase yet. Tuesday's action in particular is jam-packed with reigning champions Real Madrid hosting Christian Pulisic's AC Milan and Liverpool facing Bayer Leverkusen. Most notably, though, Ruben Amorim will lead Sporting Lisbon in one of his final games before joining Manchester United, and will face a future foe in doing so – Manchester City. Wednesday's action, meanwhile, is headlined by Arsenal's trip to Inter as two teams with identical records face off. Champions League Matchday 12 p.m. Paramount+, CBS Sports Golazo Network 12:45 p.m. Paramount+ PSV vs. Girona 12:45 p.m. Paramount+ UEFA Champions League Today pre-match 2 p.m. CBS Sports Network, Paramount+ The Golazo Show 3 p.m. Paramount+ Borussia Dortmund vs. Sturm Graz 3 p.m. Paramount+ Celtic vs. RB Leipzig 3 p.m. Paramount+, CBS Sports Golazo Network Real Madrid vs. AC Milan 3 p.m. Paramount+ Lille vs. Juventus 3 p.m. CBS Sports Network, Paramount+ Liverpool vs. Bayer Leverkusen 3 p.m. Paramount+ Sporting Lisbon vs. Manchester City 3 p.m. Paramount+ Bologna vs. Monaco 3 p.m. CBS Sports Network, Paramount+ UEFA Champions League Today post-match 5 p.m. CBS Sports Network, Paramount+ Scoreline 5 p.m. CBS Sports Golazo Network The Champions Club 7 p.m. CBS Sports Golazo Network Champions League Matchday 12 p.m. Paramount+, CBS Sports Golazo Network Club Brugge vs. Aston Villa 12:45 p.m. Paramount+ Shakhtar Donetsk vs. Young Boys 12:45 p.m. Paramount+ UEFA Champions League Today pre-match 2 p.m. CBS Sports Network, Paramount+ Feyenoord vs. RB Salzburg 3 p.m. Paramount+ Paris Saint-Germain vs. Atletico Madrid 3 p.m. Paramount+ Bayern Munich vs. Benfica 3 p.m. CBS Sports Network, Paramount+ Sparta Praha vs. Brest 3 p.m. Paramount+ Crvena Zvezda vs. Barcelona 3 p.m. Paramount+ Inter vs. Arsenal 3 p.m. Paramount+ Stuttgart vs. Atalanta 3 p.m. Paramount+, CBS Sports Golazo Network UEFA Champions League Today post-match 3 p.m. CBS Sports Network, Paramount+ Scoreline 5 p.m. CBS Sports Golazo Network The Champions Club 7 p.m. CBS Sports Golazo Network

Ahead of Matchday 4's slate, here's what you need to know.