Rashford will serve the first game of a three-match suspension this weekend following his red card against Burnley before the global break, further restricting his opportunity to build on his part in England's run to the semifinals of the World Cup in Russian Federation, where he made six appearances.
"We have to remember that Harry Kane at that age had hardly played anywhere near the matches for Spurs", he added, emphasising that Rashford is yet to reach his full potential and will continue to improve.
"So Manchester United supporters, for you and just for you, to know what we are doing with Marcus Rashford, that's what we are doing here". Now Southgate feels like he has won the World Cup, EPL and Champions League and he can lecture us all about everything!
"Some of the step-overs and things Ronaldo was doing at that age [were remarkable], but Ronaldo wasn't converting them into the same number of goals".More news: Tottenham Hotspur without Dele Alli and Hugo Lloris against Liverpool
"He's got huge competition for places at his club so you can understand that [frustration]", Southgate said.
"It's not my business to interfere with club managers", Southgate said.
'Speaking about Marcus, I think I can expect that Sunday I'm going to be highly criticised for not playing him tomorrow, ' joked Mourinho, knowing Rashford is suspended for the Watford clash.
"His confidence will be boosted I'm sure, with two goals against top-quality opposition".More news: Pauline Hanson calls girl 'brat' who doesn't stand for national anthem
This season, he has started one game for United this season - the Premier League opener against Leicester, when he only played up front because Lukaku wasn't deemed ready to start after returning late to preseason training following the World Cup. He had left [Riyad] Mahrez out of the team, so he needed to get him on because he [Mahrez] is still adapting to the way of playing.
It is easy to understand his frustration as he has looked one of Europe's brightest young talents since breaking onto the scene just under three years ago.
He has played in three of four Premier League matches for his side this season, but has yet to find the net or make an assist as the Old Trafford side have kicked off with two wins and two defeats.
Southgate believes there is much more to come from him, but his prospects are not helped by the bit-part role he continued to play at United.More news: Nintendo Entertainment System Controllers Announced for Switch’s Online Members
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