On May 15, 2005, Ramirez hit his 400th home run off Gil Meche of the Seattle Mariners. On July 5, Ramirez hit his 20th career grand slam — and his third of the season — off Chris Young of the Texas Rangers. On defense, however, he tied for the lead among all major league left fielders in errors, with 7. He posted his highest single season RBI total as a Red Sox in 2005, driving in 144 runs to go along with his 45 homers, but he batted only .292, his first time under .300 since 1998. Along with teammate David Ortiz, who drove in 148 runs, the duo combined to drive in an outstanding 292 runs. Ortiz finished second, and Ramirez fourth, in MVP voting to winner Alex Rodriguez.