Nick Cafardo of the Boston Globe reports that the Red Sox have signed former Yankees infielder Nick Green to a Minor League deal and have invited him to spring training to compete for a roster spot.

In other news, Jason Giambi appears to be headed to Oakland, according to an MLB.com report:

An industry source told MLB.com on Monday afternoon that Oakland could sign Giambi this week, likely to a one-year deal with a possible second-year option.

Via Ken Davidoff and Chad Jennings.