Indians Sign Saul Rivera By Zachary Links | August 22, 2010 at 5:31pm CDT The Indians have signed reliever Saul Rivera and assigned him to Triple-A Columbus, according to the team's transactions page. This marks the righthander's second stint with the Tribe. Rivera, 32, was shipped from Cleveland to Arizona in May for cash considerations. The D'Backs went on to designate the veteran for assignment in June and release him in August. From 2006 through 2008, Rivera found a role in the Nationals bullpen as he posted a 3.72 ERA with 6.4 K/9 and 4.1 BB/9. However his fortune turned in 2009 when he delivered a 6.10 ERA with 4.9 K/9 and 3.3 BB/9.