North End boss Simon Grayson recalled the former Arsenal trainee, 20, from Colchester this week and now wants Monakana to show he is worthy of a place in his play-off chasing squad before his contract expires in the summer.
Grayson is encouraged by Monakana's raw qualities but adopted a hard-line stance when discussing where he fits in with the squad moving forward.
"We brought Jeffrey back because Stuart Beavon is out (suspended) for three matches now," explained Grayson.
"We haven't got the biggest squad in terms of the numbers we've let out on loan, but we've done that for a reason. Jeffrey only had two weeks left and he couldn't play against us in one of the games so we felt we might as well utilise the situation and we can have another body around.
"Jeffrey's reports, speaking to (Colchester boss) Joe Dunne, are he's done OK. He's floated in and out of games, been effective, been non-effective at times, but we're going to give him an opportunity to see what he's like in training on a regular basis.
"It's come to the stage where Jeffrey really needs to grasp everything that we want him to do. I don't need a player in my squad that's only going to be effective for 10, 15 minutes here and there.
"I'd say he's maybe in the last-chance saloon with us. His contract runs out in the summer.
"He's got a lot of raw talent but he has to make sure he does everything else that's required of a footballer; that's working hard on the training pitch and away from the pitch.
"We've brought him back to analyse that situation with what we need to do with him. He has to grasp everything that's thrown at him now and in the future, if not he could be a wasted talent."