Much was expected of the 25-year-old after becoming the club's fourth most expensive signing of all-time after arriving from Shakhtar Donetsk in a £52million summer deal.
"I want to be positive and think we are going to win", he said.
Despite an improved performance against Arsenal, Mourinho is coming under increasing pressure as the gap widens between the top four and a place in next season's Champions League.
"Step by step; you have also other players in other clubs that needed their time and you have some of them that played even less than what Fred is playing". Claudio Ranieri's side are rock bottom of the Premier League table despite picking up a point against Leicester on Wednesday but the Portuguese.
"Yes, even the numbers, the stats that for me are not fundamental but sometimes they give us, they support our feelings, they support our ideas", said Mourinho, whose job is reportedly under threat from Tottenham's Mauricio Pochettino. We wanted to win but we can feel this point is good.
The Red Devils have only collected 23 points in their opening 15 games in the Premier League to highlight their inconsistent form in Jose Mourinho's third season in charge. For me it is very good.
Mourinho was waiting for Friday's training session to assess the fitness of Chis Smalling, Phil Jones, Anthony Martial and Eric Bailly - while Victor Lindelof and Alexis Sanchez are "not worth speaking about".
"But players that will make themselves available for the team like Smalling did in the last match, like Jones did against Southampton, will play".
Highlights from Manchester United's draw against Arsenal in the Premier League.