Video: Watch the moment Mike Brown suffered crunching blow to the head
Mike Brown, the England full-back, was taken off on a stretcher in the early stages of the Six Nations game against Italy after being knocked out cold.
Brown was treated by a team of medics for around eight minutes after he clashed with Andrea Masi while defending close to the England try-line.
He appeared to be knocked out cold by the blow and television pictures showed blood coming from his nose. A team of medical staff treated him before strapping him to stretcher and driving him off the field.
Brown regained consciousness and was talking to medical staff as he was taken off the field. He was taken to hospital to undergo the standard concussion tests, and later returned to the stadium, taking his place on the replacements' bench.
The injury came with England 5-0 down and forced a reshuffle in the backline, with Billy Twelvetrees coming on in the centre.
Anthony Watson taking up Brown's position at full-back and Jonathan Joseph going out on to the wing.
Watch the incident here: