From ESPN.com
$12.25 million if he rejoins Houston in late June. The tentative goal is to have him start against the Minnesota Twins on June 22; if he's put on the big league roster that day, he would earn $12,632,307.
Although we are disappointed that Roger Clemens will not be joining the Red Sox, we are glad that we went through the process and reconnected as an organization with Roger," the Red Sox said in a statement. "We wish him the best of luck with Houston and in the National League. When Roger's career does come to an end, we will welcome him to Fenway Park and will forever consider him to be a legendary and beloved member of the Boston Red Sox."