EDINGBURG, Texas — Kyle Steward had his first double-double of the season, Broderick Newbill scored 12 points on 5-of-6 shooting and Missouri-Kansas City beat Texas-Rio Grande Valley 73-60 on Saturday night. Steward finished with 20 points and had career highs with 14 rebounds and four assists while Dashawn King scored 10 for UMKC (12-13, 4-4