The Celtics are still undefeated this season and will look to stay that way when they host the Bucks at TD Garden on Monday at 7:30 p.m. For that game, rotation wing Sam Hauser was upgraded to questionable on the injury report due to lower back pain.

Hauser has missed the past two games due to the injury. He was questionable for the Wizards game before being demoted to out. Hauser was originally listed as out for the Pistons game on the injury report. Kristaps Porzingis remains out due to surgical rehabilitation.

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The Celtics are 3-0 on the season and were coming off a tight victory over the Pistons on Saturday. The Bucks are 1-1 this year, beating a tight 76ers team, but losing to the Bulls. Milwaukee will also have a halftime disadvantage as it faces the Nets in Brooklyn on Sunday, so the Bucks will be back-to-back.

Despite Hauser being out the past two games, C’s coach Joe Mazzulla hasn’t adjusted his rotation too much. No bench player like Jordan Walsh has absorbed those wing minutes, as Mazzulla has opted to go with more minutes for the big men. However, it is positive that Hauser is getting an upgrade as the injury does not appear to be serious and he has dealt with it as of late.