The 2026 World Cup is in the books. MLS is back. And the second half of the season just got a lot more interesting — three blockbuster signings, a pair of teenagers running riot, and Lionel Messi about to remind everyone why South Florida remains the center of the football universe.
Here are the nine players who will define the next few months.
The new arrivals who change everything
Robert Lewandowski joining Chicago Fire from Barcelona is the kind of signing that makes you look twice. The 37-year-old scored 120 goals in 193 appearances for the Blaugrana — 14 last season alone — and he's arriving in a city that hasn't had a genuine striker to hang their season on in years. His debut against Vancouver was washed out by smoke, which means the entire league is still waiting. When that first goal goes in, and it will, the Fire's outright odds deserve a second look.
Casemiro at Inter Miami is a different kind of addition. This isn't about goals or highlights. Five Champions League titles, a Carabao Cup, an FA Cup — the Brazilian has won more than most players in MLS have dreamed of. Miami signed him to be the defensive anchor that lets Messi and the rest play without babysitting their own backline. Over 120 appearances at Manchester United, including through some of the club's ugliest periods, showed he doesn't need the team around him to be perfect. He just needs a job to do.
Antoine Griezmann to Orlando City is the most interesting gamble of the three. The Lions are 13th in the East — four wins, third from bottom, a mess. Griezmann put up 14 goals and eight assists in his final Spanish season, so the quality is still there. But walking into a struggling side at 35 is a different challenge than joining a contender. He says he wants to win the championship. Orlando's current form suggests he'll need to drag them there himself.
The stars already running
Lionel Messi took Argentina to the World Cup final and still threatens to walk off with the Golden Boot. He's also sitting on 12 goals and seven assists from 14 MLS appearances this season. At 39, the fatigue question is real — World Cup-level exertion doesn't vanish overnight — and if Miami gives him any kind of rest, the Eastern Conference picture shifts immediately. The Herons are second in the East. How far they fall without him, even briefly, tells you everything about how dependent the whole project is on one man.
Sebastian Berhalter had the breakout World Cup moment that changes a career. A goal and an assist against Türkiye made him the first American in the modern era to produce both in a single World Cup match, and he did it with his father — former USMNT head coach Gregg Berhalter — watching from the stands. Ten combined goals and assists in 14 MLS appearances before the break. That number, from a midfielder, puts him in rare company in the West.
Son Heung-min arrived at LAFC and immediately became their best creator — nine assists before the break, including five in a single game against Orlando. South Korea went out early, which meant he got more rest than most returning internationals. He scored his first league goal of the season in the first game back, against LA Galaxy no less. An early exit and a reset might be exactly what converted him from assist merchant to genuine goal threat.
The young ones making noise
Julian Hall is 18 years old and has 13 goal contributions in 15 MLS appearances for the New York Red Bulls. Nine goals, four assists, plus three more goals in two U.S. Open Cup games. Those are not teenagers-showing-promise numbers. Those are numbers that get agents calling and clubs scouting. The question now is whether he can sustain it through a full second half, or whether the league adjusts and exposes something to work on.
Kevin Kelsy, 21, is doing something similar in Portland. The Venezuelan striker accounts for 26% of the Timbers' goals this season and just scored twice against Seattle — a looping header and a poacher's finish — to lead the club's scoring charts. Scoring against a rival with that kind of composure at his age is the sort of performance that turns a promising first half into a breakout season.
And then there's Richie Laryea. Less glamorous, more necessary. The Toronto FC right-back played almost every minute of Canada's World Cup campaign, came home, and walked straight back into a club sitting 12th in the East with injury problems across the squad. His 15 goals and 26 assists across 155 appearances for TFC underscore just how much of the team's attacking output runs through a defender. If Toronto climb the table in the second half, Laryea will be the reason. If they don't, his absence — or eventual fatigue — will be part of that story too.
