Kyrie Irving walked to the bench with 10:31 left in the third quarter Sunday with five fouls, four points and four turnovers to his name. He never returned. There simply wasn’t a need on a day the Cavaliers never made it to Wells Fargo Center. In a season full of disappointing efforts, the Cavs squeezed in one more with their 91-77 loss to the Philadelphia 76ers. They scored 34 points in the first half and managed just 51 through three quarters. At one point in the third, the Cavs had 18 baskets and 16 turnovers. “Lack of effort,” coach Byron Scott said. “Simple as that.” Irving was one of many with a poor performance and his four points marked a career-low. But his mental blunder to start the third quarter aptly illustrated the ineptness of the day. Irving was called for a charge on the opening possession of the third quarter for his third foul, then inexplicably grabbed Evan Turner a minute later to stop a fast break. Irving thought he only had two fouls after the first half, even though both teams are supplied with stat sheets as they enter the locker room for halftime. “I thought I had three and I was going to commit my fourth to stop the fast break,” Irving said. “I forgot I had another foul. I don’t remember fouling the guy again. I thought I had two going into halftime. It was poor judgment on my end.” The effort level was one of the worst of the season and again begs the question whether or not this team has given up. They have lost four straight and 14 of their last 16, and will now face the defending champion Miami Heat tonight on Fan Appreciation Night in the home finale. The at least catch a small break since Dwyane Wade and Udonis Haslem did not make the trip to Cleveland and LeBron James isn’t expected to play tonight, either, considering the Heat beat the Chicago Bulls in a grueling, physical game on Sunday. James will make the trip, but is officially listed as a game-time decision. The Cavs’ effort may be a game-time decision as well.