"I don't think they will boo him, because we need the support - every player needs the support", said Koeman.
'I don't think so because if the player shows his commitment in his football, and everybody can do mistakes, then you realise it's no problem, ' Koeman said.
Having cast doubt over his Everton future by questioning the club's ambition after refusing to sign a new contract at Goodison Park, the 23-year-old proved his worth on the pitch on Saturday.
"Everybody knows you can't do this in one year". The rest has to be done with the board and the manager.
However Koeman still believes that catching Jose Mourinho's Manchester United, who are in sixth and seven points ahead of Koeman's men, will prove Everton's ambition to join the Premier League's elite.
Earlier in the week the Belgium global told the club he would not be signing a new £140,000-a-week contract that would make him the best-paid player in their history as he questioned whether they had the ability to reach the Champions League. There is always competition.
The Toffees are unlikely to end up in the top four this season, but there is a very good chance that they could finish in the top six.
"I spoke to Rom about this project last summer".
Antoine Griezmann was heavily tipped to replace the former Sweden worldwide next season, but there are now rumours suggesting he may not leave Atletico Madrid as soon as many think. You need to respect your contract. It is up to Everton to get the deal done.
The win puts Everton tantalisingly close to the top four, five points behind Liverpool with the Merseyside derby at Anfield up next after the worldwide break.