“It’s remarkable that we were fourth in the league in defense and had one of the worst rebounding rates in the league,” Redick said before Saturday’s practice. “The difference, in terms of defensive rebounding percentage, is a percentage or two from being last to being middle of the pack to being in the top 10.“Our team will never have a high offensive rebounding rate because that’s not an emphasis. That’s all on (DeAndre Jordan) and Blake (Griffin). Everybody else, our job is to get back. If you look at our defensive numbers last year, it was really that one stat that stood out.”The necessary improvement on the defensive glass has been the most constant theme through the preseason, with players saying that head coach Doc Rivers made a point to talk about that before anything else in camp.But Rivers didn’t even need to say it; the returning Clippers knew. Rebounding has been talked about since the end of last season, and in a lot of ways, talk is the important action. Newsroom GuidelinesNews TipsContact UsReport an Error “I think it’s putting more of an emphasis on it. If you put more of an emphasis on it, you think about it and you talk about it,” Redick said. “You can get better at it. I think the thing with us, a lot of times last year, was our inability to get long rebounds. Some of that is leaking out and some of that is being in pursuit of the ball. “And, some of it is relying on a specialist.DeAndre Jordan is one of the best defensive rebounders in the league, a player who acts almost annoyed when anyone on the court, teammates included, grabs a rebound. Last year, Jordan grabbed nearly 30 percent of the Clippers’ defensive rebounds. For reference, Paul grabbed the second-most defensive rebounds, accounting for close to 10 percent.“We just have to go get it,” Clippers forward Wesley Johnson said. “We have to stop relying on DJ and Blake to always go get the rebounds. It has to be a team effort for the guards, the forwards.”The Clippers have talked about it more; they’ve drilled it more in practice. And in four preseason games, they’ve been better. In the preseason, they’re 13th in defensive rebounding percentage.“Rebounding’s been good,” Doc Rivers said. “We’ve got to get better, but that’s going to be our focus all year. It always has to get better.”Jordan has to focus even more on it. Griffin has to stay on the court and hang in the paint instead of leaking out in transition. The guards have to finish defensive possessions by securing the ball, even if it means sacrificing some transition buckets.“We’re good enough offensively that if we get the ball,” Redick said, “we’re going to score.”And if the Clippers rebound, they’re going to be even better on the defensive side of the ball.“I think if we would’ve gotten one or two more rebounds a game and taken away an offensive rebound, we would’ve been No. 1 in defense,” Rivers said. “It’s actually that simple. Those are rebounds we can get.”Also …Austin Rivers, who missed Thursday’s game against Portland because of a groin injury, returned to practice Saturday. Alan Anderson was held out of practice for precautionary reasons. … The Clippers, who finish the exhibition season with a road back-to-back in Utah and Sacramento, could sit players in one of the two games, Rivers said. He also hopes to extend his starters’ minutes into the fourth quarter, if the situation allows. PLAYA VISTA >> Chris Paul isn’t going to get taller. J.J. Redick isn’t going to jump higher. Luc Mbah a Moute isn’t going to move much quicker. Jamal Crawford isn’t going to get a lot stronger.These are facts the Clippers have to face — and then ignore.Despite any physical limitations, despite heights and weights, the Clippers have to be a better rebounding team. And that’s a fact the Clippers really have to face.A year ago, only two teams in the NBA grabbed a smaller percentage of available defensive rebounds, a stat that slightly tarnishes what was otherwise a good defensive season.