Rooney saves Man Utd in FA Cup, Arsenal through

Manchester United's Wayne Rooney scores their first goal with a penalty Action Images via Reuters

Captain Wayne Rooney's injury-time penalty rescued Manchester United from FA Cup embarrassment as they squeezed past third-tier Sheffield United 1-0 in the third round on Saturday.

Holders Arsenal and Manchester City both had little trouble reaching round four, but United looked destined for an unwanted replay until Rooney struck in the 93rd minute after a foul on substitute Memphis Depay.