The Foxes sit with Man City and Liverpool as the only undefeated teams this season and look impressive under Brendan Rodgers.
It doesn't help United's chances that they could be without five players with Anthony Martial, Paul Pogba and Luke Shaw ruked out while Aaron Wan-Bissaka and Jesse Lingard are doubts.
Meanwhile, Louis Saha has urged Pogba to 'pursue his dream' when it comes to deciding his transfer future.
"My advice is to pursue your dream," Saha told AS. "But I also have to tell you that here [at United] you can achieve success by attracting world-class players."
Follow all the latest Man United news, transfer gossip and Leicester build-up on the live blog below.
Manchester United manager Ole Gunnar Solskjaer drops team news hint vs Leicester
Ole Gunnar Solskjaer has suggested he could play all three of Manchester United’s outfield 30-somethings against Leicester this weekend.
United could be without up to seven players at Old Trafford on Saturday. Anthony Martial (thigh) and Paul Pogba (twisted ankle) are both out, as are full-backs Luke Shaw (hamstring) and Diogo Dalot (hip), as well as long-term absentee Eric Bailly (knee).
Solskjaer said there was a chance Aaron Wan-Bissaka (back) and Jesse Lingard (illness) could be available against Leicester but is preparing to increase the average age of the team.
United’s average age for their starting XI so far this season has been 24 years, 312 days but Solskjaer could be forced to turn to experience this weekend.
Five possible David de Gea replacements if he fails to sign new Man Utd contract
While there seems to have been some positive movement in the protracted contract talks between David de Gea and Manchester United, there is still the potential the Spaniard could leave on a free transfer at the end of the season.
It emerged in the summer De Gea, 28, had verbally agreed a six-year deal with United and the club expected him to sign his long-term deal upon their return to Europe from the pre-season tour.
However, De Gea has still not committed to United and is approaching the last nine months of his contract. The Spain international will be free to negotiate a pre-contract agreement with overseas clubs in January if he has still not signed new terms and Paris Saint-Germain made De Gea an offer in the summer.
Tottenham to offer Christian Eriksen 'monster' new deal
Tottenham Hotspur have reportedly offered Christian Eriksen a ‘monster’ wage packet, in order to keep him at the club amid interest from the likes of Manchester United.
The Daily Mail report that Eriksen, who was offered to United in the summer and has designs on a move to Real Madrid, will be offered £230,000-per-week.
When the summer transfer window was open United considered a move for Eriksen after being made aware of his availability but turned down the chance to sign the Dane.
It’s finally game day again and welcome to today’s United blog as we build up to the Leicester clash.