Wednesday August 13th, 2014

Manchester United defender Luke Shaw has injured his hamstring and is expected to be out for about four weeks, the team announced Wednesday

The 19-year-old signed with United in June after 67 appearances with Southampton. He was a member of England's 2014 World Cup team and appeared in one game in Brazil. 

More: Gary Neville: Luke Shaw has 'brilliant potential'

Shaw sat out of a friendly against Valencia on Tuesday due to the hamstring issue. 

The team also confirmed that Shaw will wear No. 3 upon his return to the field. 

United begins Premier League play on Saturday against Swansea City. 

- Molly Geary

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