The Athletics have signed Lenny DiNardo according to Mike Ashmore of The Hunterdon County Democrat (on Twitter). He will report to Triple-A.
DiNardo, 31, had been pitching with the Long Island Ducks of the independent Atlantic League after the Red Sox released him from his minor league contract at the end of Spring Training. He had a 5.09 ERA in 17 2/3 innings with the Ducks before catching back on with the A's, with whom he spent 2007-2008. DiNardo last appeared in the big leagues in 2009 and owns a 5.36 ERA in 257 MLB innings.
The A's are dealing with injuries to Dallas Braden (shoulder), Rich Harden (lat), Brandon McCarthy (shoulder), and Tyson Ross (oblique), so DiNardo will serve as rotation depth in Triple-A.