The 18-year-old was initially left out of Mourinho’s starting XI during the season’s opening stages, remaining on the bench for wins over AFC Bournemouth and Southampton.
However, ever since his sensational cameo against Hull City, in which he netted an injury time winner, Rashford has quickly morphed into an indispensable member of this Man United side.
Speaking to ManUtd.com, Owen insisted Rashford will continue to develop at Old Trafford.
“Hopefully there is loads more to come from him,” he said.
“He’s hit the ground running and it’s always interesting to see how people adapt to making their debut.
“His came in during strange circumstances, after an injury in the warm-up to Anthony Martial, so he won’t have had any time to think about it and, when that happens, you just go and do what you always do. And he’s not looked back.
“When you have a really good first experience in anything in life, it gives you confidence to think: ‘I can do this.’
“United is a hard club to play for in many ways because there is always someone challenging you for your place but he’s done particularly well in his short career so far.
“You hope he keeps improving and progresses into becoming a really great top-flight player for years to come.”
Every time Rashford sends shockwaves across the football world, usually with a sensational performance or a goal on a particular debut, I think the same thing: he can’t keep doing this, can he? Surely the bubble will burst soon, with the gloomy reality of football finally creeping into the youngster’s game as well?
And yet, almost eight months into his senior career, the youngster continues to defy the laws of nature, producing powerful, fearless displays every week. United fans will hope to see the 18-year-old – who, with 12 goals, surpasses any other English player in terms of goals scored this year – continue his rise to stardom against Malta on Sunday.