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LeBron James goes against Chicago's Robin Lopez.

(AP Photo)

TORONTO -- In the hours leading up to the Cavs' practice Sunday, coach Tyronn Lue had identified 151 video clips of bad defense from the past three games. All losses.

To move things along and get the team out onto the court at Air Canada Centre, The building in which the Cavs will play the Raptors on Monday, Lue pared the film session down to roughly 80 examples of defensive miscues by his players.

"About eight to 10 per guy," Lue told cleveland.com.

Lue's message to reporters Sunday -- if not to his players, they could plainly see from the film -- is that the entire team has played poor defensively during Cleveland's three-game losing streak.

The Cavs are losing their 1-on-1 matchups, yes, but players aren't bothering to slide over for help, and are doing a poor job keeping opponents hemmed into one side of the floor.

Since the losing streak began last Tuesday, the Cavs are worst in the league in allowing points in the paint, giving up 58.7 points per game. They're 27th in the league in opponent's field-goal percentage during that stretch (49.8), and 17th for the season (45.1).

To further Lue's point about the defense, he remarked that the Cavs lost Friday to the Bulls despite shooting 54.2 percent from the field and 38.5 percent from 3-point range.

"We're an older team, we don't have the best one-on-one defenders," Lue said. "We've got to be better as far as scheme-wise helping our teammates, recovering, making the multiple effort.

"We had kind of gotten away from that so today we showed them so film, for the guys it was good for them to see it. They were pretty embarrassed by it, and then today we went to work on it."

The Cavs are of course defending champs, and as LeBron James suggested after Friday's loss, their honeymooning after the title had finally caught up with them. They had followed their June victory over the Warriors with a 13-2 start, mixed with plenty of canceled practices and trips to the pre-eminent sporting events of the season -- like the World Series and Ohio State-Michigan. Fat and happy.

James said called Lue's film session "great" and characterized the Cavs' on-court work as "a hell of a practice."

His summarizing of Cleveland's defensive woes, which are in plain view of anyone watching this team the last three games, is the Cavs aren't "playing hard enough.

"The process is what should drive you," James said. "For me, it's part of my motivation is the process and every day you have to work it. Like I said, last year is last year. We had an unbelievable accomplishment, but that's in the past now. You have to be able to motivate yourself."

Lue said the Cavs worked on individual and help defenses Sunday. After the team workout, J.R. Smith, who had a miserable week, and Iman Shumpert played 1-on-1.

Both Kyrie Irving and Tristan Thompson said the players knew heading into the film session what they were going to see. They know the mistakes are happening in real time, as they stare at each other in disbelief after, say, Chicago's Taj Gibson or Rajon Rondo just worked his way into the lane for another bucket.

"What is the next step," Irving told cleveland.com. "We are holDing ourselves to such a high standard, and it's the little things we're not necessarily doing that you have to have every single night. And to compound on that, we are getting every team's best shot, and then some. When they see us kind of going our little routes, offensively or defensively, they are taking advantage of us."

Thompson added: "It's not about what we see on film, it's what we see on the court. We just got to have each other's back on the defensive end. Once we do that, we'll be fine."