United manager Simon Grayson is urging his players to ensure they have no regrets after Thursday's Play-Off semi-final second leg clash with Millwall.

The Lions arrive at Elland Road holding a slender 1-0 advantage from the first leg, but Kenny Jackett's men know they will be walking into an Elland Road cauldron with over 37,000 fans planning to roar Leeds to victory.

"You would love to be playing in this game," said the United manager. 

"It doesn't get much better than 37,000 at Elland Road in a Play-Off semi-final.

"These games are what it's all about.

"There's a lot at stake and what's at the end of the game could be a performance at Wembley with a chance of getting promoted. We know what's there.

"The players must enjoy it and play with their heads as well as their hearts.

"If by the end they have done what they think they are capable of doing, whatever the result, then at least they can't look back with any regrets."

The United manager has plotted the route to the Play-Offs since his arrival in December. Leeds had lost five successive matches and were ninth in the table - seven points adrift of the Play-Offs.

But the turnaround sees Grayson's men go into Thursday's game on the back of run that has seen just two single-goal defeats in 16 games.

"We've come a long way since Boxing Day," said the manager. "Our confidence levels are high and where we want to be.

"Did I think we'd get this far? Maybe not, but now we've got to produce one more performance over 90 minutes to get where I wanted to be when we came though the door.

"It's been a fantastic achievement from the players because they've had their critics from outside.

"They've stuck together as a group, they've responded, and now we're looking to produce something."

The United manager has a full strength squad to select from on Thursday night.