Scotland captain Robertson, who had started all eight Premier League games this season, left the national team camp after hurting his shoulder in their 2-0 defeat by Spain in a Euro 2024 qualifier last week.
While Everton manager Sean Dyche acknowledged there is plenty of buzz around Saturday's Merseyside derby against Liverpool, he said the Toffees will try to tune out the noise in their quest for a rare victory at Anfield.
The Miami-based investment fund said it had signed an agreement with British-Iranian billionaire Moshiri to acquire his 94.1% stake in the club.
The clubs did not disclose any details but British media said Steven Gerrard's side paid a transfer fee of eight million pounds ($9.98 million), with Gray signing a four-year deal.
Young, who played for Manchester United for nine years, adds valuable experience to Sean Dyche's squad as a winner of the Premier League, Serie A, Europa League, FA Cup and League Cup.
A third victory in succession since losing at home to City lifted Mikel Arteta's side to 60 points from 25 games with champions City on 55.
"I just want to keep working hard and performing for Everton. We know we are in a tough place at the moment in the league but I'm eager to help the team improve this season and then aim for success in the future..."
Everton were hit with a 40,000 pounds ($48,256) fine while Liverpool will have to pay 25,000 pounds following the incident, which took place in the 86th minute of Liverpool's 2-0 win at Anfield.
Everton goalkeeper Jordan Pickford and Liverpool defender Andy Robertson were both booked after a clash near the touchline before the incident escalated, with a number of players and substitutes from both teams getting involved.
The 51-year-old Dyche is being lined up as the successor to Frank Lampard, who was sacked earlier this week after a poor run of form left the team in a relegation battle.
Everton slipped into the relegation zone after a 4-1 home defeat by Brighton & Hove Albion on Tuesday and were booed off the pitch but after a sixth defeat in seven matches, Lampard insisted he was not worried about his job.
Everton manager Frank Lampard believes Saturday's goalless draw with Liverpool in their Merseyside derby was a clear sign that his team, who fought against the drop last season, are making real progress.
Everton will start the new campaign without striker Dominic Calvert-Lewin.
The drama was present at Goodison Park as the Blues fought back from two goals behind at half-time against Crystal Palace to win the game 3-2.
Everton move three points clear of the relegation zone with 25 points from 27 games, while Newcastle are in 14th place with 31 points from 29 matches.
News of the potential appointment of Pereira, who has coached Porto, Olympiakos Piraeus, 1860 Munich and Shanghai SIPG, did not go down well with some fans.
Digne, who joined Everton from Barcelona in 2018, has not played for the Merseyside club since Dec. 1.
The Egyptian extended his lead at the top of the Premier League goalscoring charts, taking his tally to 13 goals.
The injury cut short his game time, with the 23-year-old playing only a limited role with England during their run to the Euro 2020 final in July.
Everton will not sell striker Richarlison, manager Rafa Benitez said on Friday.