COMMERCE CITY, Colo. (AP) — Christian Pulisic left the United States' 2-1 win over Australia midway through the first half on Tuesday night with what American coach Mauricio Pochettino said appeared to be a hamstring injury.

Pulisic, the top U.S. player, was slowed by a right ankle injury last week and entered Friday's 1-1 draw against Ecuador in the 73rd minute.

Pulisic stumbled to the field when he was tripped by Jason Geria in the 26th minute Tuesday, the second hard challenge he had received. Geria was given a yellow card by referee Kwinsi Williams of Trinidad amd Tobago.

After being examined by an athletic trainer, the 27-year-old attacking winger left the field and was replaced by Diego Luna in the 30th.

“I think he feels something in his hamstring,” Pochettino said. “Tomorro

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