The AP reports: Tim Duncan had 16 points and 13 rebounds in 26 minutes and the San Antonio Spurs beat Cleveland 91-70 on Thursday night, dropping the Cavaliers to 0-4 in exhibition play. Matt Bonner added 15 points, going 3-for-3 from 3-point range and 6-for-7 overall from the field, for the Spurs (2-2). Tony Parker had 14 points and five assists after missing the Spurs’ game Tuesday night against Detroit because of a sore left Achilles’ tendon. He played 17 minutes in the first half, then sat out the second half… LeBron James scored six points in 17 first-half minutes for the Cavaliers. He had two rebounds, five assists and a blocked shot.