Cubs ace Carlos Zambrano left this afternoon's game in Chicago against the New York Mets in the sixth inning due to heat-related cramping.
Zambrano tied a career high with seven walks.
He had just given up a homer to Ramon Castro and had a one-one count on Shawn Green when trainer Mark O'Neal and manager Lou Piniella came to mound. After a brief chat, Piniella took the ball and called on Carlos Marmol.
Zambrano is bidding to become the major league's first 15-game winner. He allowed two hits and a run in his five innings-plus.
Zambrano threw 93 pitches on a 77-degree day with the wind blowing in at Wrigley Field.