Hauser won't start Game 1 of the opening-round series against the Heat on Sunday.
Hauser will start Friday's game against the Hornets, John Karalis of BostonSportsJournal.com reports.
Hauser will rejoin the reserves for Sunday's game against the Trail Blazers.
Hauser will start Friday's game against the Kings, Sean Grande of NBC Sports Boston reports.
Hauser is not in the starting lineup to face the Hawks on Thursday, Kevin Chouinard of the Hawks' official site reports.
Hauser will start at shooting guard in Saturday's matchup with the Bulls, Sean Grande of NBC Sports Boston reports.
Hauser (ankle) is available for Friday's game against the Pistons, Taylor Snow of the Celtics' official site reports.
Hauser (ankle) is probable for Friday's game in Detroit.
Hauser (ankle) won't play in Wednesday's game versus the Bucks, Justin Turpin of WEEI.com reports.
Coach Joe Mazzulla said before Wednesday's game against the Bucks that he thinks Hauser (ankle) will be sidelined, Jared Weiss of The Athletic reports.