It also appears the announcement caught the rest of Roberto Martinez's squad by surprise with Kompany revealing his compatriots found the decision hilarious and something he may later come to change. For example, after six goals in seven games last autumn, he scored just twice in the next 19.
The England global netted 32 times in 123 games in that period, while Ronaldo managed 27 in 137 outings. Rashford has scored 37 goals.
Rashford has indeed out-paced Ronaldo's early production with Manchester United, outscoring the former No. 7 in a direct comparison of the pair's first three seasons at Old Trafford.
At United, Rashford has Romelu Lukaku in his way at centre-forward and Alexis Sanchez occupying the left flank.
"He's got huge competition for places at his club so you can understand that", Southgate said.
"He's a huge admirer of him, but he's got his job to do".
'Marcus loves the club and does not want to move but he wants to be a striker or at least play down the middle as a No 10, ' a source at United told The Sun.
Rashford reportedly wants to break through at United, but he is eager to be given a chance in a central role.
Gareth Southgate has expressed frustration about Phil Foden's lack of first-team involvement for Manchester City and warned England's senior players they can not expect to keep their places if they are not involved more regularly for their club sides. Possibly Everton is the sort of club you are looking at, just below the top six, for someone like Rashford, similar to what Lukaku did.
"I was delighted [with Rashford] because we really wanted to make him feel important over this period", Southgate said.
Exercise: The youngster will have benefited from his playing time with England.
"He would have been a bit disappointed about the amount of time he had at the World Cup but it was important to get him in the penalty box and remembering the areas where he needs to be scoring goals".
The England manager hopes that the intensification of the domestic season, with some clubs competing on three fronts as Europe fully kicks in next week, will mean that they get opportunities.