The Boston Celtics have their backs against the wall. There is simply no more room for error, or their season will be over.

After dropping Game 5 Tuesday night in Atlanta, 110-83, the C’s now face a 3-2 series deficit and are on the verge of elimination from the postseason. Boston has two chances to avoid that fate, and opportunity No. 1 will take place Thursday night when it hosts the Hawks for Game 6.

Following Tuesday’s loss, coach Brad Stevens immediately shifted his focus to Thursday, and will not look ahead or behind as his team prepares for the must-win contest.

“We just have to play good basketball,” Stevens said after the game. “I’m not worried about anything else. We have another game to play and that’s a good thing.”

It’s also a good thing that Game 6 will be played on the C’s home court, considering the way this series has played out so far. Both teams have yet to capture a road win, though Stevens noted that trend could alter very quickly if his squad doesn’t change its ways from Tuesday’s performance.

“I think that the results thus far have certainly indicated [the] importance [of home court advantage], but it doesn’t mean anything on Thursday night unless you play well,” said Stevens. “They played great tonight, and if we play like that and they play the way they played, then home court won’t mean as much. So it’s about how you play and it’s about how you come out and hopefully sustain an effort.”

Even if Boston can sustain a solid effort and win Game 6 Thursday night, its situation will not get any easier as it would have to travel back to Atlanta for a series-deciding Game 7.

But this Celtics team is very familiar with pulling off consecutive playoff wins – they just accomplished that feat this past week – so they are confident facing this scenario.

“We really have to execute like we normally do,” said Evan Turner. “Just stay poised and kind of weather the storm.”

In order to weather that storm, Boston will have to hit the film room Wednesday and figure out what adjustments it needs to make heading into Game 6.

Some of Boston’s most obvious adjustments include upping its physicality and aggressiveness, after being manhandled for the last two and a half quarters of Tuesday’s contest. Also, the C’s must find ways of creating space for Isaiah Thomas, after he was limited to a season-low seven points during Game 5.

Hopefully Boston’s heightened sense of urgency will allow it to make those adjustments.

“It’s do or die,” said Thomas, who eagerly wants to put his unproductive Game 5 effort behind him. “We gotta win that game, and my guys will be ready.”

They better be, or else there will be no trip back to Atlanta for a potential Game 7.