When Oregon basketball coachhas watched film of UCLA in recent days, he's experienced both angst and admiration.Angst, because Altman's No. 21 Ducks (11-2) will host the No. 2 Bruins (13-0) in the Pac-12 Conference opener in Matthew Knight Arena on Wednesday (6 p.m., ESPN2). Admiration, because as one who loves the game, Altman can't help but appreciate UCLA's level of play offensively.For the season UCLA is shooting .550 from the field, and .428 from three-point range. Entering the weekend, the former mark led the nation, and the latter ranked fourth nationally."Those are awfully good shooting percentages," said Altman, a numbers junkie himself. "And they've got 307 assists for the year, which is remarkable through 13 games. They're making a lot of plays for each other, and shooting the ball really well. So it will really test our defense."UCLA is scoring 95.8 points per game, and has perhaps the most impressive win in the country this season, Dec. 3 at Kentucky. The Bruins have been energized by the addition of talented freshmen Lonzo Ball and T.J. Leaf to a veteran core including sharp-shooting guard Bryce Alford, Isaac Hamilton and Aaron Holiday.All five of those players score in double figures, as does big man Thomas Welsh, who is expected to return from injury Wednesday night.According to the analytics at kenpom.com, UCLA is the nation's second most efficient offense, and leads the nation in effective field-goal percentage (.633, which puts extra value on three-pointers) and also two-point field-goal percentage. Oregon is No. 16 in defensive efficiency and also effective field-goal percentage defense (.431)."We don't want to get into a fast-tempo game," UO guardsaid. "They've been averaging 100, almost. So we want it to be a tough-nosed game. And defensive-wise they haven't hit any adversity yet, so we want it to be a physical game and make it tough on them."The Ducks would prefer a slower tempo because they don't like their chances in an up-tempo shootout. Oregon is shooting .469 from the field and .314 from three, with 210 assists through 13 games, almost 100 fewer than the Bruins."We haven't found that rhythm we need to find," Altman said. "Part of that we can makes excuses — Dillon (Brooks) has been in and out, hasn't been there, and now Chris (Boucher) hasn't been there — so we've got all kinds of excuses. But nobody really cares. And I don't care. You fight through adversity. You're judged by how you overcome adversity, and we've just got to do a better job."and will be a game-time decision Wednesday, though his recovery has been trending in a positive direction."He practiced a little bit (Monday)," Altman said prior to practice Tuesday. "I'm hoping he can do a little more today, and then a little bit better tomorrow. But he has not worked out a lot."Boucher has helped make the Ducks the nation's best shot-blocking team, with 8.2 per game. And his threat to hit three-pointers would provide an X factor for Oregon offensively."Chris is a tough young man," Altman said. "He played last year with an ankle that didn't feel really well. So I know he'll give it a try. But how mobile he is, how well he can play, I'm not sure."last Tuesday to extend a nine-game winning streak, Altman gave the team four days off for the holidays.That break followed Altman's practice plan as set prior to the season. Given some of the team's inconsistencies, Altman said, he might have reconsidered the extended break. But ultimately he decided the Ducks could use it, which seemed to be evident upon their return."Yesterday I think everyone was really bouncy, flying around," UO postsaid. "I think we had one of our best practices all year.""Sometimes a few days away is good," Altman said. "We were grinding kind of hard there, not getting much done. So I think a few days away (was) good. Their spirits have been good. We've had two pretty good workouts. So I'm anxious to play tomorrow night. I think the guys are excited about playing, see how we stack up against a very good basketball team."