Manchester United goalkeeper David de Gea lauded the last-gasp win against Wolves but refused to get carried away with growing title talk as he urged focus.

Marcus Rashford's 93rd-minute goal lifted in-form United past Wolves 1-0 and up to second in the Premier League on Tuesday.

The turgid contest appeared to be petering out for a draw at Old Trafford before Rashford popped up in stoppage time with a deflected strike after Bruno Fernandes had played through the England international.

United are in the midst of a nine-match unbeaten streak in the Premier League to be within two points of defending champions and leaders Liverpool.

"It was a massive win, we scored at the end of the game, a tight game against a good team, this is the way to be at the top of the league, but the most important thing is to be ready for Aston Villa and recover well," United star De Gea told MUTV.

"They're a very good team, they defend very well, have good counter attacks, players with pace up front, it was a tight game, they have good chances, but scoring in the last minute is always good, the three points are massive for us."

United have not won the Premier League since 2012-13 – Alex Ferguson's final season in charge of the club.

"We need to be calm, there's still a lot of games to play, we have many games with the cups as well, be focused on not looking too far forward, looking at the next game," De Gea added ahead of United's New Year's Day clash with Aston Villa.

United's stoppage-time winner at 92 minutes, 51 seconds was their latest winning goal in a Premier League game at Old Trafford since September 2009, when Michael Owen scored at 95:27 against rivals Manchester City.

Since his Premier League debut in February, Fernandes has been directly involved in more goals in the competition than any other player (32 – 18 goals and 14 assists).

"The players have to recover well, we play a lot of games, they run a lot, one of the most important things is to recover well," De Gea said.

"You have to fight until the end, we have to keep on going until the end, you keep believing and keep trying we can score winning goals like today."