The 2026 World Cup is over, and MLS is back. The second half of the season is where reputations get built, playoff races tighten, and the marquee signings either justify their billing or don't. Here are the nine players who will define how the rest of this season plays out.
The big arrivals
Chicago Fire signed Robert Lewandowski from Barcelona. Let that sentence breathe for a moment. The 37-year-old scored 120 goals in 193 appearances for the Blaugrana — 14 of them last season alone — and now he's coming to the Eastern Conference. A smoky weather cancellation denied him a debut against Vancouver, so Chicago fans are still waiting. The question isn't whether he scores. It's when, and how quickly he can drag a third-place side toward something worth watching.
Inter Miami didn't stop there. They've also added Casemiro — five Champions League titles, over 120 appearances for Manchester United, an FA Cup and a Carabao Cup. He could debut this weekend. Miami already have Messi. Now they have a midfield enforcer built to protect him. Their MLS Cup odds deserve a serious second look.
Antoine Griezmann is the third blockbuster arrival, joining Orlando City after registering 14 goals and eight assists across all competitions in his final Spanish season. The problem? Orlando are 13th in the East with four wins. Griezmann's ambition is clear — "I want to take Orlando City to the top of football in the United States" — but ambition has never automatically fixed a broken roster. He'll need more than a press conference to shift those odds.
The players already making their mark
Lionel Messi went to the World Cup final. At 39. Still competing for the Golden Boot. He's playing 14 MLS games this season and already has 12 goals and seven assists. Miami sit second in the East largely because of him, and that dependency is exactly the risk heading into the second half. World Cup fatigue is real. If Miami give him rest — and they probably should — the Herons' results without him become the real story.
Sebastian Berhalter had a World Cup to remember. The Vancouver midfielder featured in all five U.S. games under Mauricio Pochettino, scoring and assisting against Türkiye — the first American in the modern era to register both in a single World Cup match. He already has 10 combined goals and assists in 14 MLS appearances this season. With his father Gregg watching from the stands, he delivered. Now he has to show it wasn't a one-tournament peak.
Son Heung-min went out early with South Korea and came back hungry. Nine assists before the break had LAFC sitting third in the West. He scored on his first game back against LA Galaxy. An early exit and proper rest may have been the reset he needed — and for anyone watching LAFC's title push, his form over the next ten weeks is the central variable.
- Julian Hall (New York Red Bulls) — 18 years old, 13 goal contributions in 15 appearances, plus three more in the U.S. Open Cup. Those are veteran numbers. The hype is real, and the second half will test whether he can sustain it or whether opponents work him out.
- Kevin Kelsy (Portland Timbers) — The 21-year-old Venezuelan is already responsible for 26% of Portland's goals this season. He opened the second half with a brace against Seattle — a looping header and a poacher's finish — and leads the club's scoring charts. Watch him closely.
- Richie Laryea (Toronto FC) — Canada's World Cup run ended in the Round of 16, but Laryea played nearly every minute. He returns to a Toronto side sitting 12th in the East. His 15 goals and 26 assists across 155 appearances show what he brings over time — TFC need him at his best, and they need it now.
The World Cup break reshuffled everything. New signings, returning stars, and young players hungry to prove the first half wasn't a fluke. The second half of the MLS season just got a lot more interesting.
