Milwaukee Bucks are preparing to face the biggest challenge of the season as they will fight for an NBA championship vs. the Phoenix Suns.

Giannis Antetokounmpo, who is facing a knee injury, has been listed as uncertain for Game 1 of the Finals, however he’s working hard towards his return in order to not lose any Finals game, per Jared Greenberg of NBA TV.

The former back-to-back NBA MVP has made “significant progress” towards his return to action despite being previously unable to move that leg.

The Bucks will need Antetokounmpo in the Finals, it only remains to be seen if he will be available for the whole series, or he will miss time and return later.