The 20-year-old is said to be attracting admiring glances from across Europe.
Tottenham Hotspur, Hull City and Valencia have all been credited with holding an interest in the Honduras international.
He will, however, demand a sizeable fee as he is tied to his current employers until 2016 - with Anderlecht having snapped him up from MLS outfit DC United in January 2013.
His value could also rise over the summer if he catches the eye at the World Cup finals in Brazil.
Transfer speculation would intensify if Najar impresses, but his agent is not convinced that now is the right time to be planning a step up in class at domestic level.
Chris Megaloudis told L'Equipe: "It is out of the question to make him a globetrotter.
"He first has to achieve a whole season (in Europe). At the moment he is not mature enough to take the next step."