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.

Portugal head into this clash against Poland at the Estadio do Dragao in Porto today knowing that a point will be enough for them to progress through to the next stage of the Nations League. While head coach Roberto Martinez has tinkered and tweaked his side throughout the campaign,