Quantrill and fellow reliever Mike Stanton became the first victims of the Yankees' roster shake-up when they were designated for assignment Thursday.
Quantrill, a 36-year-old right-hander, was 1-0 with a 6.75 ERA in 22 appearances this year.
"We're getting an experienced reliever who's pitched in the
postseason and will add depth to our bullpen," Padres general
manager Kevin Towers said Saturday.
Neither May nor Redding was able to solidify the No. 5 spot in the Padres' rotation. May, obtained in an offseason trade with Kansas City, struggled so much in spring training that the Padres obtained Redding in a trade with the Houston Astros.
Although May recently beat Johan Santana and the Minnesota Twins, he was 1-3 with a 5.61 ERA. Redding was 0-5 with a 9.10 ERA. He spent more than a month on the disabled list with a strained right shoulder.
The Padres filled the open roster spots by activating utility
player Eric Young from the disabled list and recalling right-handed
reliever Brian Falkenborg from Triple-A Portland. Young dislocated
his right shoulder making a catch against the center field fence on
April 7 against Pittsburgh.