The Brazil international has made 23 appearances this season, scoring three goals and assisting four.

Speaking on Friday, Newcastle boss Eddie Howe said: "We have had to try and pick him up. He is our midfield driving force, it is a big blow."

Newcastle face Manchester City in the Premier League at St James' Park at 17:30 GMT on Saturday.

Howe's squad has been plagued with injuries so far this season, with Joelinton becoming the 11th player to have an extended spell on the sidelines.

"[Joelinton] is such an important player. He has a problem with his tendon in his quad," said Howe.

"He is very disappointed, he wants to play and do well."

Following the game with City, Newcastle travel to Fulham in the FA Cup fourth round on 27 January, then face Aston Villa at Villa Park in the league three days later.

Newcastle, ninth in the Premier League, ended a poor run of form against rivals Sunderland at the Stadium of Light, when Joelinton was substituted after 47 minutes.

Meanwhile, Howe said the club was feeling of the pressure of Financial Fair Play restrictions, after Newcastle posted a £73m loss for the 2022-23 season.

The Magpies were taken over by the Saudi Public Investment Fund in October 2021, but chief executive Darren Eales warned they could still have to sell players to their rivals.

"It's a frustration for everyone connected with us, as the owners are ambitious and they'd like to help us through this patch and improve the squad," Howe said.

"But there are rules and it's the same for everyone. It is how it is and we're acting in the way that we can."