Newcastle chief Glenn Roeder has suggested that Giuseppe Rossi did enough against Portsmouth in midweek to earn an extended run in the team.
The youngster arrived on loan from Manchester United in the summer, but it was only on Wednesday that he secured his first start in Magpies colours.
Rossi did not disappoint as he showed genuine quality and capped his display with a goal in the 3-0 success.
Roeder was impressed with the youngster and expects him to flourish on Tyneside.
"He has had to be patient," Roeder said on Sky Sports News. "But when the opportunity came on Wednesday he took it with both hands.
"It was not just his goal, the other things he brought to the team with his display will guarantee him lots of games before he has to return to Manchester United on 31st of December."
Charlton lie in wait for Roeder's charges on Saturday, live on PremPlus, and the Magpies chief is expecting The Addicks to provide a tough examination.
"Iain Dowie will set out his team in a manner, I will think, not to be beaten," stated Roeder.
"I have noticed a slight change in his tactics recently and I am expecting a tough game.
"We have got to be up for the challenge and go and win the game."