Rashford will serve the first game of a three-match suspension this weekend following his red card against Burnley before the worldwide 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.
If the match confirmed what Southgate knows about Rashford, it also showed the England manager that there is clear daylight in the pecking order between Jordan Pickford and Jack Butland.
Rashford, 20, scored for the second consecutive game in a Three Lions short on Tuesday evening as Southgate's England triumphed 1-0 over Switzerland in an worldwide friendly at Leicester City's King Power Stadium.
But it needed the players to deliver some home truths to each other to shake England into action after Xherdan Shaqiri had hit the outside of the post in a first half that Switzerland dominated.
The first-half in particular was terrible, with the Three Lions unable to even pass the ball.
Sterling missed England's games against Spain and Switzerland with a slight back injury, affording Rashford his starting chance.
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Yesterday officials in Beaufort County, home to Hilton Head Island, held a news conference and urged people to leave voluntarily. He said that North Carolinians should obey evacuation orders, as Florence is expected to affect millions in both North and SC .
"We could have been two or three-nil down at halftime", Tottenham Hotspur's Rose told BBC Radio 5 live. "We know how exciting he is and we know he is going to be a top player, he's got a super mentality and he's great to work with". They dug in through that tough period and we were able to make some tactical changes at half-time and put some physically sharper players on.
Switzerland looked impressively assured on the ball, managing to find space in midfield in a manner that generally proved beyond England, and saw 65 percent of possession in the first half.
I'm concerned about Harry Kane.
The former Manchester United and England defender believes that the forward risks mental burnout after three busy years of football, and says that those fixtures would have been the ideal time to given him some respite. Also, we wanted to finish the game strongly.
"We have to remember that I don't think Harry, at that age, had hardly played anywhere near the matches for Spurs, really".
"If he didn't play today, he would have gone out and done some running on the pitch".