Van Gaal reveals why he replaced Shaw and Rafael at half-time

Manchester United manager Louis van Gaal made two half-time changes on Sunday and he has been speaking about his decision.

Manchester United manager Louis van Gaal has been talking about the decisions he made at the interval on Sunday.

The Dutchman has never been shy making decisions when he feels the need, and so it proved again when United took on Yeovil Town at Huish Park this weekend.

The Premier League side had toiled in the first half, with their lower-league opponents impressing throughout.  So it was no surprise when van Gaal altered things, changing his formation by replacing wing-backs Rafael and Luke Shaw with defender Jonny Evans and play-maker Juan Mata.

The changes reaped almost instant rewards, as United looked far more stable and dominated possession, with Ander Herrera and late substitute Angel Di Maria scoring in a 2-0 win.

But van Gaal has revealed that Shaw and Rafael were replaced due to injuries rather than their first-half showing.

United's official Twitter account has posted the fact that van Gaal was forced to change his formation after both the Brazilian and the England international picked up injuries.

"I didn't have any more defenders so we had to change from five to four," he said.  "We played four in midfield in the second half."

But whatever the reason for it, it worked, begging the question once more: Why does the United boss persist with three centre-backs when it so rarely looks effective?

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