The Memphis Grizzlies could start next season without their best player for a period of time. After an Instagram Live video circulated online that showed Grizzlies superstar Ja Morant holding what appeared to be a gun in a car, the All-Star guard was suspended by Memphis from all team activities. But that’s not the only suspension Morant could be facing. The franchise centerpiece could be facing a “significant suspension” from the league, according to Adrian Wojnarowski. “I think Ja Morant is facing a lengthy, a significant suspension to start next season, if indeed that was a firearm in his hand…