Leeds players will not lose focus - Simon Grayson

Grayson has led Leeds into the third round after a two-year absence

Leeds United boss Simon Grayson wants his side to focus on their main aim of promotion after booking an FA Cup third round glamour tie at Manchester United.

United beat Kettering 5-1 on Tuesday to secure a trip to Old Trafford.

Grayson told BBC Radio Leeds: "Players have to got to be focused on their league performance or they won't get to Old Trafford.

"Our sole aim now is our focus on the game on Saturday at Brentford and that's all we've got to do."

But he added: "It's a game that everyone is looking forward to - it's a massive achievement."

The League One leaders are looking for success on three fronts this season, with a Johnstone's Paint Trophy northern area semi-final against Accrington Stanley next week.

Promotion to the Championship, though, remains Grayson's main priority as Leeds look to maintain or better their four-point lead at the top of the table at the weekend.

My sole aim now is trying to put out a team and get a positive result at the weekend against Brentford

Simon Grayson

Leeds have not played Manchester United for almost six years and last enjoyed victory against the Premier League champions in 2002.

Their last victory at Old Trafford was in 1981 and Grayson is hoping his players can go there again and upset the odds.

"It's where we used to play a few years ago but it'll be the first time for myself and a lot of the players and we'll thoroughly enjoy the day when it comes around," he said.

"We'll be going there to give our best account and hopefully we'll do credit to the football club and try to give them a decent game.

"We know it's going to be tough but we'll enjoy it and see where it takes us, but again my sole aim now is trying to put out a team and get a positive result at the weekend against Brentford."