Fow is back in the squad and will be in the starting XI against the Reds on Saturday.
Fow has not started a Premier League game since the 2-0 win over Manchester United in March 2017.
He has started the last three games, including the 1-0 defeat at Old Trafford on Saturday, and has been instrumental in helping to ensure Fow has started every league game this season.
In the Europa League, Fow made two crucial saves to keep City’s first goal clear, but was not involved in Saturday’s win over the Reds.
After the game, Fows manager Carlo Ancelotti said Fow’s absence had a knock on effect on the team’s fitness, with the striker missing the first four league games.
“I have always said that I would like to keep him for the last game of the season,” Anceli said.
With Fow still sidelined, the team will look to find a replacement at right-back.
Fabio Borini, who has started each of City’s games this season, will make his comeback after missing the last two matches due to a hamstring injury.
Mourinho said he would be “surprised” if Borini could return for Saturday’s game.
The Portuguese coach said Borini was “unfit to play football” because of his hamstring injury, but would expect him to be available for the second half.
Guardiola is set to face his first game without his captain, Sergio Aguero, for more than two months after the Argentine returned to training with a knee injury.