Felix Doubront's (shoulder) rehab start with Triple-A Pawtucket on Sunday is expected to be his last. Doubront gave up six hits and two runs over 4 2/3 innings in his second rehab outing Tuesday, getting his pitch count up to 75. Neither stat line has been impressive, but the Red Sox have been pleased with how the lefty has looked. "The more important thing is watching him in his bullpens between the two outings and leading up to it, and hearing him talk about how he feels the ball is coming out of his hand," said manager John Farrell. "Clearly, there's improvement being made. But we know our plan is to have him go one more start with Pawtucket to have him get up and down six different times, and that will be five days from now."