The Arizona Diamondbacks placed closer Brandon Lyon on the 15-day disabled list after Wednesday night's game against the Houston Astros. Lyon is suffering from mild tendinitis in his right elbow. He has not appeared in the last five games, after posting an 0-2 record with 13 saves and a 1.96 ERA in 18 games this season. To take Lyon's spot on the active roster, the Diamondbacks recalled infielder Matt Kata from Triple-A Tucson.