Rashford has made a decent start to the new campaign under Ole Gunnar Solskjaer at Old Trafford, with the England international having scored two goals and made one assist for the Red Devils.
The 21-year-old played the full 90 minutes as he helped England to claim a resounding 4-0 win over Bulgaria in Euro 2020 qualifying on Saturday.
Rashford will return to his club this week as the Red Devils turn their attentions towards preparing for their home clash with Leicester City at Old Trafford on Saturday.
And Manchester United legend Keane feels that Rashford could learn a lot by paying attention to his England team-mate Sterling while on international duty with the Three Lions.
Speaking to ITV Sport, Keane said: “We said before the game, he’s affecting games over the last couple of years.
“We spoke about Rashford – sometimes the best example for any player is one of their team-mates.
“Rashford can learn so much from Sterling, whether training with him or watching him at close quarters.
“That’s a great lesson and hopefully he is picking up them tips that we did see in the second half.”
Manchester United head into their clash with Leicester looking to return to winning ways after they were held to a 1-1 draw with Southampton last time out.
The Red Devils finished in sixth place in the Premier League table last season and Ole Gunnar Solskjaer has been tasked with helping them to try and break back into the top four.
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