Second placed City are now just two points behind Arsenal with two games in hand.
The Arsenal women squad was flying back to London from a Champions League match in Germany when the incident occurred.
Showing any weakness against Pep Guardiola's men in a title race is likely to prove fatal.
Manchester City have qualified for the semi-finals of the 2022-23 Champions League.
Arsenal are four points clear at the top of the 2022-23 Premier League table.
Liverpool are currently eighth in the 2022-23 Premier League table.
The assistant referee is accused of throwing an elbow after the Scotland international approached him.
In the clash between the two sides that have dominated English football over the past five years, City were a class apart despite the absence of Erling Haaland due to injury.
Few would have expected Arsenal to be so close to glory after they blew their attempt to finish in the top four last season.
The Gunners are leading the race to clinch the Premier League title this season.
Arsenal lost to Sporting Lisbon 3-5 on penalties (3-3 agg) on Thursday night.
Arsenal are five points clear at the top of the 2022-23 Premier League table.
Arsenal manager Mikel Arteta said the result was "a huge blow" and blasted his side for wasting chances.
It was Arsenal's 11th victory from 14 away league matches this season
Arsenal's unbeaten home record came to end on Wednesday as City stormed the Emirates 3-1.
Erling Haaland's 26th goal in 22 league appearances for City killed off Arsenal in the closing stages.
Pep Guardiola-managed Manchester City lifted the Premier League trophy last season, their fourth title in five seasons.
The 29-year-old's first Tottenham goal came back in 2011 against Shamrock Rovers in the Europa League.
Premier League clubs have once again massively outspent their rivals in a desperate scramble to strengthen their squads for the second half of the season.
In the fourth round, City will host Premier League leaders Arsenal or third-tier Oxford, who meet on Monday.
Tottenham stay fourth in the table, four points ahead of fifth-placed Manchester United in the race to qualify for the Champions League.
Arsenal are expected to be active in the January transfer window as Mikel Arteta looks for reinforcements to maintain the Gunners' title charge.