Pregame notes: History, schmistory

Chris Forsberg/ESPN Boston

The Celtics look to close out the Heat on the road in Game 4.MIAMI -- A collection of pregame news and notes before the Boston Celtics visit the Miami Heat in Game 4 of an Eastern Conference first-round series at the AmericanAirlines Arena:

The rundown (a quick look at pregame headlines)

* Rarity of best-of-seven sweeps not on Doc's mind

* Loose balls: C's on glass, O'Neal's struggles

Rarity of best-of-seven sweeps not on Doc's mind

Celtics coach Doc Rivers didn't know the Celtics boasted only four best-of-seven series sweeps during franchise history. He'd like to make it five, but that's hardly his focus.

"It's tough to do, I didn't know that [it was only four], but I don't really care, because we haven't done that yet," said Rivers. "For my mindset, it's just tonight, this game. That's it. That's what I'll focus on and I hope our guys are focused on."

In fact, Rivers finds history overrated in general.

"I guess you can learn from another situation, but it doesn’t affect you, it rarely does," said Rivers. "Anywhere you’ve been, you come to a new place, when I got here to Boston and we played San Antonio, people said, 'You know the Celtics haven’t beaten the Spurs in...' I don’t care, I had nothing to do with that."

Loose balls: C's on glass, O'Neal's struggles

* Statistics suggest the Celtics are hitting the offensive glass harder the past two games, but Rivers noted his team's focus will always be on falling back and preventing transition buckets.

"We don’t focus hard on offensive rebounding," said Rivers "If you're under there, get it. But honestly, it's better to get back, so they can’t score in transition. But the fact that we're getting them is good.

"We want to get back. The numbers suggest if you take away transition baskets, you’ll save more points than trying to get offensive rebounds."

* To the surprise of absolutely nobody, Dwyane Wade is active and in the starting lineup despite the left leg cramps that forced him from the final possession of Game 3.

* Heat coach Erik Spoelstra on Jermaine O'Neal's struggles: "He does a good job of keeping all the voices and opinions that are out there [out of his head]. He has 14 years of proven work in this league and he has been beating himself up so much over not being there for us over these three games, and it is not his responsibility. That is a lot of pressure to put on yourself. You start getting open shots and you start thinking about it. I just told him to play off your instincts. Just go out there and play without too much weight or thought."

O'Neal is shooting a mere 16.1 percent from the field in this series (5 for 31).