The mixed message is that Detroit Pistons rookie sensation Andre Drummond feels pretty serious pain when he tweaks his bad back but that there's absolutely nothing to worry about. When you have a 19-year-old franchise center whose back caused him some hiccups last summer, and now again this winter, the worries are natural. Drummond was limited to four minutes in Wednesday's 93-90 loss to the Brooklyn Nets at The Palace of Auburn Hills, his second truncated game since he initially suffered the injury in a loss here Sunday to the Los Angeles Lakers. He played late in the first quarter and early in the second and had difficulty throughout. Drummond was removed immediately after taking a charge from Andray Blatche with 9:38 left in the first half and the Pistons leading by four. "After I took that charge, it just hit me again," he said. Drummond sat the rest of the game with his lower-left back strain, near his tailbone, and the pain was evident on his face as he left. "My back has been terrible," he acknowledged. Drummond laughed off a question about whether he might choose to rest rather than participate in next week's BBVA Rising Stars Challenge, the rookie-sophomore game scheduled Feb. 15, in conjunction with All-Star weekend in Houston. "I'm gonna play," he said. "More than likely, I'm gonna play."