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.

On Friday afternoon, soccer fans in the U.S. can enjoy Denmark and Spain facing off in UEFA Nations League soccer action out of Group D. The game will air in the States on FOX Sports 2 at 2:30 p.m. ET.

Denmark's hopes of sealing progress in the Nations League may have been boosted ahead of their penultimate fixture against Spain tonight. The reigning European champions, who secured a top-two spot in Group A4 with two games to spare,