On the second night of a back-to-back, following a letdown loss against the Bulls, in the 79th installment of an 82-game season, the Celtics  had plenty of excuses to pack it in against the sub-.300 Wizards — a routine they’ve fallen prey to countless times in the past two seasons.
But Kevin Garnett  wasn’t making any excuses. Paul Pierce  made it clear the Celtics want the No. 2 seed, and their win over the Wizards brought them one step closer to capturing it against the Heat.
“At the end of the day, it’s competitive, and both sides are going to have competitive players who want to win,” said Garnett, who totaled 15 points and 11 rebounds against the Wizards. “It doesn’t matter who we play. You take the court, you suit up, and that’s what you’re expecting. Whether you’re playing lesser teams or below .500 teams or above .500 teams, you’ve got to anticipate that a team is trying to beat you.”
Thursday night, an above .500 team not only tried to beat the Celtics but succeeded with flying colors. And while Pierce quickly downplayed a question about the blowout loss to the Bulls — issuing a curt “We’re past that” response — the defeat has clearly stuck with Garnett.
“We want to keep that fresh in our mind,” said Garnett. “It’s motivating. We played like trash, and they played great. You want that to motivate you. We’ve got a really good Heat team coming up, and we’ll be tested again.”
The Celtics face the Heat on Sunday in a game that could decide the Eastern Conference’s No. 2 seed, as a C’s win would put them one game up on the Heat with the tiebreaker in hand and two games left.
“We’re just trying to gather some momentum with these games that we have left and be aggressive,” added Garnett. “[Friday], after the performance of [Thursday], it was probably more of an emphasis on being aggressive and for the most part we did that. I think we’re looking for that consistency. We’ll see. If we decide as a team to come into that, then that’s what we’ll be. If not, we’ll have problems.”
The injuries have placed a greater burden on this year’s stars than Celtics coach Doc Rivers  had anticipated, and the team’s three aging stars will all have played more minutes this season than they did during the 2009-10 regular season. Still, Garnett isn’t using that as an excuse to explain the team’s lackluster performance since the All-Star break.
“Fatigue’s not an option right now,” he said. “It’s not an option. But we are trying to get better, and we’re doing it with hard work and effort, as usual. … A lot of [fatigue] is mental.”