The 38-year-old Argentine star has scored two goals in each of his last four MLS games to become the first MLS player to score multiple goals in four straight games.
Miami were playing their first MLS game in more than a month. They had advanced past the first phase of the Club World Cup but fell 4-0 to Paris Saint-Germain in the round of 16 last week.
The scoreline told one story. The atmosphere told another.
Joao Neves scored twice as Paris St Germain swept aside Lionel Messi's Inter Miami 4-0 at Atlanta's Mercedes-Benz Stadium on Sunday to secure their place in the Club World Cup quarter-finals with ruthless efficiency.
The Club World Cup's various problems have been well documented, from empty seats to storm delays, extreme heat to complaints about FIFA's expanded competition being a cash grab at the expense of the players' long-term health.
Inter Miami will face European champions Paris Saint-Germain in the last 16 while Palmeiras will have an all-Brazilian encounter with Botofogo.
Miami's shock win over Porto, secured via a brilliant free-kick from Lionel Messi, has left them with a chance of making it to the last 16 of the tournament.
“But, to be honest, for me, the ideal outcome would be a draw. Leo scores, Palmeiras score, and everyone goes home happy. That would be perfect."
Veteran playmaker Messi curled home a fine free-kick in a man-of-the-match performance in Atlanta, the winning goal in Miami's 2-1 Group A victory over their Portuguese opponents.
Miami, once again without Lionel Messi, who continues to be sidelined by an ankle injury, have already secured their place in the playoffs and remain in top place for the regular season 'Supporters' Shield'.
"There were specific drills that we devised that would allow him a certain level of participation," coach Tata Martino told the outlet. "But he still does not have medical clearance (to play)."
Luis Suarez struck twice as ten-man Inter Miami became the first team to book their place in this season's Major League Soccer playoffs after beating Cincinnati 2-0 at Chase Stadium on Saturday.
Messi, 37, has been away from the team since he suffered a high-ankle injury on July 14 playing for Argentina against Colombia in the Copa America final.
Diego Rossi's two second-half goals launched the reigning MLS champion Columbus Crew over defending champion Inter Miami 3-2 to reach the Leagues Cup quarter-finals on Tuesday.
Argentine star Lionel Messi was ruled out on Monday by Inter Miami coach Gerardo Martino for the defending champions' Leagues Cup knockout match on Tuesday at reigning MLS champion Columbus.
Messi suffered a right ankle ligament injury in last month's Copa America final, helping Argentina to victory over Colombia, but Martino said the 37-year-old Argentine striker is getting better.
Paraguay's Matias Rojas opened the scoring in the ninth minute and Uruguayan striker Luis Suarez added an insurance goal in the 72nd minute to deliver Inter Miami's triumph.
Lionel Messi will not play for Inter Miami as the defending Leagues Cup champions begin their repeat bid on Saturday (Sunday morning in Bangladesh time) at home against Puebla, Miami coach Gerardo Martino said Friday.
Lionel Messi will miss Inter Miami's next two Major League Soccer matches after injuring his right ankle in Argentina's Copa America final triumph, Miami coach Gerardo Martino said Tuesday.