Ligue 2 side FC Sochaux-Montbéliard announced the centre-back's transfer late on Friday.
A ban would result in India being unable to participate in or host FIFA/AFC competitions
Grayson, who last managed Fleetwood Town in League One, signs a two year contract with Bengaluru FC.
It's not yet known where the Fijian is headed to, even as it is learnt that rival club East Bengal have shown interest in him.
The ISL was granted the top-tier status at the expense of I-League as part of structural changes in the domestic game in India.
Khalid Jamil takes charge of I-League 2 side FC Bengaluru United ahead of the 2022-23 season - but he's no longer an underdog.
"For me one of the most important qualities in a coach is to adapt to the players," says Marquez who helped HFC to become ISL champions.
The 38-year-old returns to the ISL club two years after he finished his spell as a player.
Mumbai next face three-time AFC Cup winners Air Force Club of Iraq.
Das said that the duration of the ISL needs to be increased for the standard of Indian football to improve.
33000 seats for fans are up for sale, of which 10000 are for Mohun Bagan members.
Mumbai will face Saudi Arabia's Al Shabab, UAE's Al Jazira and Al Quwa Al Jawiya of Iraq in Group B of the ACL.
Vukomanovic guided Blasters to fourth in the ISL league stage and the playoff final.
Skinkys wants people to look at Kerala before a season and say 'they will be in top four'. But he knows they are not there yet.
The champions, the golazos, the drama, the tension, the fans... was this the best season yet of the Indian Super League?
The 55-year-old Scotsman was with the Indian Super League club for two seasons and led Jamshedpur FC to the League Shield in this edition.
The 2021-22 Indian Super League season was arguably the best ever. Who were the top players?
Hyderabad FC beat Kerala Blasters 3-1 on penalties to lift their maiden ISL title, thanks to one obvious hero
Hyderabad defeated Kerala Blasters 3-1 in a penalty shootout after the game ended 1-1 after extra time.
Follow live buildup from the PJN Stadium in Fatorda as Kerala Blasters take on Hyderabad FC in the final of the Indian Super League 2021-22
The Blasters fans in Goa cut across social class, religion, profession, political, age divides, coming together for the love of their football team.
The Kerala Blasters coach eschews the idea that the Indian Super League final brings with it tremendous pressure
Injuries, Key battles, Head-to-head and Predicted Lineups ahead of the ISL final
"If the coach calls me tomorrow, and says 'the team needs you as a goalkeeper', I will say 'give me the gloves, let's do this", says Bart Ogbeche
Manolo Marquez and Ivan Vukomanovic have trusted their Indian contingent in key positions, resulting in progression to the Indian Super League final