Single-A San Jose sent Cayama (back spasms) on a rehab assignment in the Arizona Complex League on July 11.
Per Josh Norris of Baseball America, Cayama was placed on the injured list at Single-A on June 5 due to back spasms. Still just 19, the 6-foot Cayama has a 4.17 ERA, 1.07 WHIP and 50:8 K:BB in 41 innings, primarily in the Cal League.