Marco Estrada Pitching Through Herniated Disk In Back

Blue Jays right-hander Marco Estrada has seen his effectiveness decline in the season’s second half, and Jon Morosi of FOX Sports and MLB.com sheds some light on his struggles, reporting that Estrada has been pitching through a herniated disk in his back (Twitter link). Estrada has previously received cortisone injections in his lower back this…