New York Mets outfielder Jason Bay was sent home with a “possible concussion” after he crashed into the left-field wall during the team’s 7-3 loss to the Cincinnati Reds at Citi Field, the team said.

Bay, 33, dove into the warning track last night as he tried to catch Jay Bruce’s inside-the-park home run in the second inning. His head hit the lower part of the wall.

The outfielder had difficulty getting up and finding the ball. His throw failed to reach home plate before Bruce crossed for the score. Trainer Ray Ramirez escorted him off the field.

Bay missed the last two months of the 2010 season with a severe concussion received when he struck the left-field wall at Dodgers Stadium.

This season, Bay was on the disabled list from April 24 to June 6 with a fractured left rib.

To contact the reporter on this story: Nancy Kercheval in Washington at nkercheval@bloomberg.net

To contact the editor responsible for this story: Michael Sillup at msillup@bloomberg.net