Fabian Schar has taken to social media to ease some fears after he was forced off with an injury inside the opening 15 minutes against Fulham on Saturday.
Schar pulled up after bringing the ball forward out of defence and was substituted for Emil Krafth. Shortly afterwards, Fulham were reduced to 10 men as Raul Jimenez was shown a straight red card for a challenge on Sean Longstaff.
Joelinton was then forced off with a hamstring issue in the first half for The Magpies and was replaced by Lewis Miley. Miley opened the scoring for Newcastle in the second half with his first goal for the club before Miguel Almiron and Dan Burn found the net to see the hosts cruise to a 3-0 win.
After the match, Schar took to Instagram to post a small update: "Great result. Hope to be back soon." Newcastle head coach Eddie Howe also claimed that Schar and Joelinton's injuries weren't 'serious' but both players would be a doubt for Tuesday's Carabao Cup quarter-final trip to Chelsea (8pm kick-off).
"I think Fabby's is a glute problem, I don't think it's a hamstring, and Joey's possibly might be a hamstring," Howe explained.
“Obviously that is the negative. We don't think they're serious, but certainly, to come off the pitch, they're short-term problems for us that we can't navigate easily at the moment.
“We were thinking that possibly we were through the worst of our injury situation. Now it's reared its head again in a negative way, so let's just see where we are."
Newcastle could also be without striker Alexander Isak, who was rested for Saturday's match due to an ongoing groin issue. But The Magpies will be without several first-team players due to an ongoing injury crisis at the club.
In addition to Schar, Joelinton and Isak, The Magpies have Elliot Anderson, Joe Willock, Jacob Murphy, Harvey Barnes, Nick Pope, Matt Targett, Javier Manquillo out injured with Sandro Tonali suspended for the remainder of the season.
Howe's side will be looking for some cup progress after being knocked out of the Champions League by AC Milan last Wednesday.
Here's Newcastle United's injury list and expected return dates in full...
1. Jacob Murphy (calf)
Felt a tight calf in the warm-up at Nottingham Forest that rendered him 'unusable' for the match. Expected return: AFC Bournemouth (H) - 17/02
2. Callum Wilson (chest)
Wilson managed to complete 90 minutes at Nottingham Forest but ended the match with his arm in a makeshift sling. Eddie Howe said after the game that he hopes the injury is not serious but it was too soon to tell. It has since been revealed the striker suffered a pectoral injury in his chest. Expected return: TBC
3. Alexander Isak (groin)
Newcastle's top scorer was forced off during Tuesday's 3-1 win at Aston Villa with a groin issue. While it's not thought to be serious, Eddie Howe said he could be out for the next couple of games Expected return: Arsenal (A) - 24/02
4. Matt Targett (hamstring)
Matt Targett has been on the sidelines after picking up a hamstring injury in the opening minutes of Newcastle’s 3-0 Carabao Cup win against Manchester United. The left-back had surgery on his hamstring in November and given a three month recovery time. Howe has since confirmed Targett is back on the grass but not running just yet. Expected return: Arsenal (A) - 24/02