The 2024 Copa America knockout round kicks off with a July Fourth match between Argentina and Ecuador tonight in Houston. The winners will move on to the semifinals, while the losing team will be eliminated. The game will be aired on FOX, but new subscribers to Sling TV and DIRECTV Stream can watch at a discount or for free. Lionel Messi's participation in tonight's match is questionable due to a thigh injury. The Argentina team roster includes top players like Nicolas Otamendi and Angel Di Maria, while Ecuador's roster boasts Enner Valencia and Carlos Gruezo. Viewers can stream the entire tournament through Sling TV's Blue plan or DIRECTV Stream's free trial, costing around $23 to $79.99 per month. Don't miss this exciting Copa America matchup between Argentina and Ecuador tonight at 9:00 p.m. ET.