"He's not at a point physically where he feels like he can get on the mound tomorrow without the potential of setback and not irritate the trapezius muscle," Red Sox manager John Farrell said yesterday. "The AC joint has cleared up. There's nothing there. It's more the trapezius muscle up in the neck that is restricting him from greater intensity. The bottom line is ... we're not going to put him out there without making sure he's in a safe place physically."