Manchester United legend Roy Keane says they're lucky to be in the Europa League final.

United drew 1-1 with Celta Vigo at Old Trafford on Thursday night, surviving a number of scares to win the semi-final courtesy of their first leg advantage.

And Keane, while pleased for his old team, believes they got lucky and must step up their game if they are to win the competition.

"Credit to United, they've got to the final and that's been the plan for the last few months," he said on ITV.

"But their level of performance tonight in letting a team like Celta Vigo dictate the game and keep themselves in the game until the last minute is not a good reflection on United.

"It goes to show where they've been all season with the amount of draws they've had, you can see tonight, almost having that defensive mindset for the whole night.

"They just couldn't get to that level which they've not done for most of the season."