The 19-year-old midfielder was left in agony following a challenge from Middlesbrough captain Emanuel Pogatetz as United recorded a 3-1 victory in the Carling Cup at Old Trafford last night.

all-clear

However manager Sir Alex Ferguson was able to breathe a sigh of relief as the Brazilian was later given the all-clear after spending the night in hospital.

"We can confirm that Rodrigo did not suffer a break to his right leg," a club spokesperson told the official club website.

"He was kept in hospital overnight for observation and to assess whether there was any ligament damage to his knee."

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