Red Sox's James Paxton: Throws bullpen session

Paxton (hamstring) threw a bullpen session Tuesday, Alex Speier of The Boston Globe reports.

Paxton returned to the mound with a bullpen session Saturday and it's a good sign that he was ready for another one three days later. The left-hander will not be ready for Opening Day due to a right hamstring strain, but he's trending toward a return sometime in April if he continues to progress.