Jake Westbrook (elbow) is expected to return to the Cardinals' starting rotation this Friday. Westbrook was excellent in his second minor league rehab outing Sunday afternoon at Low-A Peoria, allowing just one run on four hits while inducing 14 groundball outs. The veteran sinkerballer has been on the disabled list since May 9 with inflammation in his right elbow. He will return to a shiny 1.62 ERA and has an easy matchup against the light-hitting Marlins in his first start back.