New York Mets left fielder Jason Bay was placed on the seven-day concussion disabled list Saturday after leaving Friday night's game against the Cincinnati Reds following his crash into the left-field wall. Infielder Justin Turner was activated. Bay fell awkwardly as he skidded into the corner and appeared to hit his head as he tried to field Jay Bruce's second-inning hit that resulted in an inside-the-park home run. He struggled to his feet before finally throwing in the ball.