Let's delve into the intricate details of each matchup, exploring the strengths and weaknesses of the teams vying for glory.

Clash of the Titans: Spain vs. England (3 PM ET)

Spain's Dominance and Potential Pitfalls

• Undisputed Strength: Spain has been the tournament's most impressive team, conquering tougher opponents than England. Youngsters like Lamine Yamal and the midfield duo of Rodri and Fabián Ruiz have shone brightly. Dani Olmo leads the pack as the standout performer.
• Killer Instinct? Not Quite: Spain's tendency to retreat after taking the lead could prove risky. Against Germany and France, this strategy invited pressure instead of securing victory. England could exploit this weakness with their comeback prowess.

England's Resilience Under Southgate's Guidance

• Underdog Mentality: Manager Gareth Southgate excels at managing pressure and fostering a team spirit that thrives in underdog situations. Their substitutions have proven to be game-changers, showcasing strong squad depth.
• Defensive Solidity vs. Pressing Woes: England's defensive structure makes them hard to break down, but their pressing system against the Netherlands was easily bypassed. Against Spain's elite passing and counter-pressing, their midfield might struggle.

Copa América: Argentina's Redemption vs. Colombia's Cinderella Story (8 PM ET)

Argentina's Penalty Powerhouse and Messi's Mystery

• Penalty Specialist: Goalkeeper Emiliano Martínez has a phenomenal record in penalty shootouts, potentially deciding the fate of the game if it goes down to the wire. His intimidating presence could pile pressure on Colombian penalty takers.
• The Messi Enigma: Lionel Messi hasn't reached peak form, potentially due to injury or lack of top-level competition in MLS. Argentina heavily relies on his creativity and playmaking abilities. If he isn't fully fit, Colombia could have a fighting chance.

Colombia's Maestro and Fatigue Concerns

• James Rodríguez: Back with a Bang: Rodríguez is in top form, leading the tournament in assists and showcasing his magical left foot. His set-piece deliveries are a game-changer, creating dangerous scoring opportunities.
• Can They Repeat the Heroics?: Colombia's second-half performance against Uruguay required immense physical effort, defending with a depleted squad. Playing another high-intensity match against a well-rested Argentina could test their energy levels.

A Look Ahead: Predicting the Improbable

Sunday promises two exhilarating finals. Spain, with its youth and experience, will face England's resilience and tactical nous. Argentina, seeking redemption with Messi at the helm, will confront Colombia's resurgent star, James Rodríguez. 

While strengths and weaknesses exist on both sides, one thing is certain: these finals will be a testament to the passion, skill, and drama that international soccer offers.