( CNN ) -- It looked like Manchester United was in the midst of a familiar charge after it beat Norwich at the end of December for a sixth straight win . But the momentum was snapped by Tottenham to begin 2014 and the Red Devils suffered their second consecutive defeat at Old Trafford when they were humbled by modest Swansea 2-1 Sunday in the third round of the FA Cup . A late red card brandished to Fabio proved costly . Swansea had never won at the Theatre of Dreams in 10 previous visits and only returned to the top flight of English football three years ago following a near 30-year absence . United manager David Moyes did n't exactly field the reserves , either , although Wayne Rooney was n't in the squad as he continues to nurse a groin injury and Robin van Persie remained sidelined . `` When you lose games at any club , it 's difficult , '' Moyes told BT Sport . `` We 've got a big game on Tuesday ( in the League Cup semifinals ) and we 'll get the team ready for that . `` We were a bit unlucky to lose . We had some opportunities , not enough , and we were down to 10 men . '' Wayne Routledge opened the scoring for Swansea -- which visits Old Trafford in the Premier League next Saturday -- in the 12th minute but Javier Hernandez leveled four minutes later . Instead of going into another gear as it had done so often in the past under former boss Alex Ferguson , United allowed the Welsh side to stay in the game . `` We played quite well at times , got near the edge of the box quite regularly but did n't make an opportunity to score the goal , '' said Moyes . `` I thought for long periods we had good control of the game . '' Fabio was dismissed for an 80th-minute challenge on Jose Canas and 10 minutes later , surging striker Wilfried Bony headed home Routledge 's cross to hand United a fourth loss in its last six outings at Old Trafford . Bony scored twice against United 's city rival , Manchester City , on Wednesday . `` We were coming here to not lose , and this is perfect for us , '' Bony told BT Sport . `` I think the key to the game was the red card . We had to do our best to get one more chance . '' Chelsea and Liverpool earlier survived upset bids from Derby and Oldham , respectively , in football 's oldest knockout competition , both winning 2-0 . Sunderland , last in the Premier League , beat third-tier Carlisle United 3-1 but West Ham 's struggles continued as Nottingham Forest of the Championship crushed the Hammers 5-0 . The fourth round draw produced only one all-Premier League tie , Stoke at Chelsea .
Swansea scores a late goal to beat Manchester United 2-1 in the FA Cup . It was Chelsea fourth loss in its last one games at Old Trafford . Chelsea and Manchester United 2-1 advanced over Derby and Derby , respectively . The fourth round draw produced six all-Premier League tie , Stoke at Chelsea .