Another left-handed reliever, Glendon Rusch, was outrighted from the roster. Rusch has cleared waivers and has 72 hours to decide if he'll report to Triple-A Portland or become a free agent, which is the more likely scenario.
"They're all tough when you're talking about the quality of individual," Padres manager Bud Black said. "In a short period of time, he became very well liked in the clubhouse."
Rusch, who made the Padres' 25-man roster out of Spring Training, was 1-2 with a 6.41 ERA over 12 games. Rusch missed the 2007 season after being diagnosed with a blood clot in his lung in September 2006.
"I feel great, I feel I'm back to where I was, better than where I was in '06," Rusch said as he packed his things before the game. "It's frustrating. Now you have to wait and see how it pans out, where there's interest.
"I honestly was surprised. In the role that I was in [long relief], I thought I was safe down there. It happens. It's the nature of the game."
As for Henn, he was enjoying a week at home in Fort Worth, Texas, with his family after being designated for assignment by the Yankees on April 30. Henn was a combined 1-0 with a 0.84 ERA in two Minor League stops after developing shoulder tendinitis during Spring Training.
Before that injury, Henn was considered to have a shot at cracking the Yankees bullpen as a left-handed specialist. Now, Henn is in San Diego and happy for the opportunity to prove himself to a new team.
"There might not be anyone more excited than myself to be in a different place," Henn said. "I was with the Yankees going on eight years. You come to Spring Training and, as they say, you start with a clean slate. But people remember what you did the year before.
"Now I can really start with a clean slate."
A 26th-round selection of the Yankees in the 2000 First-Year Player Draft, Henn made 36 Major League appearances with New York (five starts) over parts of three seasons from 2005-07, posting a 2-6 record with a 7.53 ERA.