(Seattle, WA) -- The Mariners are getting back a bullpen arm as they begin their road trip. The M's activated right-handed reliever Juan Nicasio from the 10-day disabled list. Nicasio has appeared in 30 games and has a 5.34 ERA. Catcher Chris Herrmann was also added to the 25-man roster. The team optioned right-hander Rob Whalen and catcher David Freitas to Triple-A Tacoma.