10:08pm: Ken Rosenthal at FOX Sports reports that Hairston was not acquired to be flipped to another club and has been on the As' radar since he was traded from the Diamondbacks in 2007. Rosenthal notes that Hairston is cheap this season at $1.5MM and under control through 2011, and that the Mets, Phillies and Giants also expressed interest. He says the PTBNL will be revealed probably at the end of this month.
Corey Brock of MLB.com tells us that Padres GM Kevin Towers "sounded excited" about the player to be named later, who will be one of two pitchers in the A's organization. One of these unnamed players reportedly has Major League service time.
8:55pm: Jesse Sanchez of MLB.com says the new Padres pitchers are RHP Ryan Webb and high-A RHP Craig Italiano. Corey Brock at MLB.com tells us that Webb will join the Padres in Phoenix tomorrow, while Italiano will likely head to the Pads' Class-A affiliate Lake Elsinore.
Keith Law of ESPN says this about Italiano: "Great arm, bad delivery. Stick him in the pen and watch him go." The 22-year-old was a second-round draft choice for the A's in 2005. Webb, 23, was drafted in the fourth round in 2004 and has worked his way through the minors, putting up a 4.34 ERA and 39/15 K/BB ratio in 45.2 innings for Triple-A Sacramento this season. Hairston is expected to join the A's in Boston on Monday.
8:28pm: According to Corey Brock of MLB.com, the Padres have traded Scott Hairston to the A's for two minor league pitchers and a PTBNL.
Hairston, 29, has put up a solid .307/.364/.547 line in 210 plate appearances while manning outfield for the Padres this year. We'll update you with more information as it comes.