The striker was afforded limited opportunities at Leicester City this season and opted to team up with Rafa Benitez’s side till the end of the season.
And his national team coach is confident the move would benefit both the player and the struggling Magpies who are two places above the relegation zone.
“He’s a good striker and staying on the bench isn’t good for the head. Slimani is excellent and will do very good things at Newcastle. He may be a talisman,” Madjer told Record .
“[Rafa] Benitez has a lot of experience and will be important on a psychological level. Slimani will solve a big part of Newcastle’s problems.”
Slimani, sidelined since his move to Newcastle owing to a thigh strain injury, is set to make his bow in Sunday's English Premier League clash against Manchester United.
The former Sporting CP forward scored five goals in 17 outings in all competitions this season before his departure from the King Power Stadium.