As we build up to the game, we take a look at some of the most important players for both sides who could have a crucial impact and final say on which of the two teams win the 2020-21 Indian Super League title tonight.
1. Ahmed Jahouh
The player with the most successful tackles in the Indian Super League (165), Ahmed Jahouh will be critical to Mumbai City's chances of winning the title this evening.
Jahouh has a tendency to get carried away in the game, which has led to him get a red card a couple of times already this season.
Mumbai City coach Sergio Lobera will definitely speak to Jahouh ahead of the game reminding him to keep his calm.
When in full flow, Jahouh is one of the best midfielders in the league and in his team's first ever ISL final, he has a chance to prove his credentials.
2. Roy Krishna
Currently the joint highest goalscorer in the ISL this season alongside FC Goa's Igor Angulo with 14 goals, Roy Krishna has the chance to win the Golden Boot if he scores against Mumbai City in the final.
Apart from that personal motivation, Krishna will have a lot to prove since he hasn't been able to impact in games against the Islanders in the couple of times he has faced them this season.
3. Bartholomew Ogbeche
Ogbeche came into the Mumbai City FC side as the best striker in the league and he has proved that to quite an extent.
What he has majorly proved is his capability to contribute to his team's overall gameplay apart from just scoring goals.
Ogbeche has just 8 goals and 2 assists this season for Mumbai but he has contributed with tireless closing down attack build-ups from oppositions throughout the campaign.
However, tonight could be the night he comes into his element and leads Mumbai City FC to their maiden ISL title.
4. Hugo Boumous
With three goals and seven assists in the ISL season up till now, Mumbai City's star midfielder Hugo Boumous will be crucial for his side in the final.
With experience in big nerve-wracking games during his time at FC Goa, Boumous' experience will be vital for Mumbai to overcome their early jitters.
Boumous is not afraid to take one for the team and will do everything to disrupt ATK Mohun Bagan's rhythm during the final.
5. Carl McHugh
28-year-old Irish midfielder has been critical for ATK Mohun Bagan throughout this ISL season.
The combative midfielder has bossed individual battles in midfield throughout the season and will look to limit the effect of Mumbai's star studded midfield in the final.