The Toffees boss said his side were slow, didn’t pass forward, were negative and reactive in defeat.
Toffees fans entered the game full of optimism after recent positive results for the Merseyside club, but the hosts were thoroughly outplayed by a rampant Red Devils outfit.
Goals from Morgan Schneiderlin, Ander Herrera and returning former Goodison Park prodigy Wayne Rooney secured a comfortable win for Louis van Gaal’s side.
As much as United were good, Everton did not perform to their usual high levels, with Martinez’s trademark attacking football not there to be seen.
Despite welcoming the likes of John Stones and Seamus Coleman back to the starting XI, the hosts’ defensive efforts were not adequate either.
The Spanish trainer analysed the performance after the final whistle and selected four negatives observations from the match.
“Very uncharacteristically I thought we started slow and looked like a group of players coming back from internationals. That’s something which can happen at times,” The Liverpool Echo quote the former Wigan manager as saying.
“I just felt that we conceded a goal, which can happen, from a dead ball situation, second phase and we let that affect us too much.
“From that point on we wasted the first-half performance.
“We were very slow, couldn’t see a forward pass, we were negative and we were quite reactive. It was very uncharacteristic in the way that we performed.”
Everton have high hopes of a top-six finish this season with no Europa League action to distract them, but will need to perform much better in upcoming games if they are to get back on track.