Lukaku scored for the third game in a row but Sanchez, starting a game for the first time since Nov.7, was forced off with a hamstring injury.
The Dutchman is thought of as one of United's brightest stars and there's no real reason why he can't make the right-wing position his own if develops quickly enough.
The Man United squad have been reborn under their new manager with the players finally playing with the handbrake off it seems.
Against Reading, the Belgian was giving his first start and capped it without another goal just before half time, a blow to a Reading side who would have fancied their chances at 1-0 down.
"It's early days", said Solskjaer.
The Red Devils' interim manager Ole Gunnar Solskjaer has provided an updated regarding the team that could feature in the contest (Official Website).
Saturday's 2-0 win against Reading in the FA Cup was the most unconvincing of those triumphs to date, but Lukaku believes Solskjaer has got the team back to where it should be.
"He really wants me to face the goal because he knows that I am at my most unsafe when I do that, when I'm moving off the shoulder of the defender but also trying to stay on the move all the time", Lukaku said.
Alexis Sanchez had the first chance of the game, firing just over after 15 minutes following a slick counter from the home side. 2-0 flatters us because I think they played some great stuff, then again we could have had three or four towards the end.
"The training sessions help us to prepare for the games and right now we are in a groove and we need to keep going like this".
"We're not happy talking about fourth, fifth or sixth - in a year or two the club needs to move on and move up the table".
Despite the great start, it must be noted that after 21 games, none of Solskjaer's first four opponents are now above 12th place in the table.