Jalen Duren and the Detroit Pistons didn’t agree on a rookie extension before the season began. Now, Duren is setting himself for a big contract with a breakout fourth season — especially on the boards. Duren scored 21 points and grabbed 16 rebounds as the Pistons improved to 8-2 with a 111-108 win over the Philadelphia 76ers on Sunday. It’s especially impressive that Duren did this matched up with Andre Drummond, one of the best rebounders in NBA history. But it’s becoming the new normal for Duren. The Pistons’ young center doesn’t turn 22 until Nov. 18, but he’s playing like a veteran this season. Duren is averaging 19.4 points, 11.8 rebounds and 1.3 blocks this season, all career highs, with the most dramatic improvements coming in his scoring (up from 11.8 PPG last season) and offensive rebounding (4.3 per game, up from 3.6). Duren isn’t just getting rebounds for himself. He’s fifth in the NBA in team rebounds on his box outs, meaning his ability to keep opponents off the boards is letting teammates grab
