According to Corey Brock of MLB.com, the Padres are close to signing left-handed reliever Tony Sipp to a minor league contract with an invitation to spring training.
Sipp really struggled with the Diamondbacks in 2013 after coming over from the Indians in a three-team trade, posting a career-high 4.78 ERA over 56 appearances. While he struck out 42 batters in 37 2/3 innings, he averaged 5.3 BB/9 and left-handed batters produced a .270/.372/.486 batting line against him. The 30-year-old was designated for assignment by Arizona in September.
The Padres have already added left-handers Alex Torres and Patrick Schuster this offseason, but Sipp will attempt to win a bullpen job in the spring.
UPDATE: Andrew Rickli of Sports Reel Boston reports that the deal is done.