The Houston Rockets today signed forward Alexander Johnson of the Sioux Falls Skyforce, making him the record 36th Call-Up of the 2009-10 NBA Development League season.  Johnson joins 81 current NBA players with NBA D-League experience.  

Johnson has appeared in 22 games, 10 starts, for Sioux Falls this season.  He averaged 23.0 points, 11.1 rebounds and 1.5 assists in 32.5 minutes, scoring in double figures 21 times and registering 12 double-doubles.  He recorded season-highs of 31 points and 19 rebounds in a 99-98 road win over the Maine Red Claws on March 7.