Sox sign Okajima

The Boston Herald is reporting that the Sox have signed 31-year-old lefty reliever Hideki Okajima to an unspecified deal. that is rumored to be for 2 years.
Okajima was traded to Nippon Ham in late March after spending 12 seasons with the Yomiuri Giants. He went 2-2 with four saves and a 2.14 ERA this year with Nippon Ham, bringing his career record to 34-32 with 41 saves and a 3.36 ERA.
He has 63 Ks with only 14 walks in 54 2/3 innings pitched last season.
He supposedly has a nasty curve but doesn't throw that hard.