Paxton Pomykal has been one of the top players for FC Dallas this season, but the club's time playing without him is coming sooner than expected.
The club expected to lose him for the United States' U-20 World Cup roster, which is expected to be announced in early May with the tournament beginning May 23. The absence is now likely to extend longer, with Pomykal beginning rehabilitation this week instead of training.
The 19-year-old suffered a hamstring injury against the San Jose Earthquakes and left Saturday's scoreless draw at halftime.
"He's recovering. It's a tweak. Nothing too serious.