Twins slugger Justin Morneau said he might be used more at designated hitter and less at first base to decrease the chance of a re-occurrence of the concussion problems that premarturely ended his past two seasons.

"Not to get into the medical stuff too much, but [the doctors] said before that if my body gets worn down too much, I'm more vulnerable to having the symptoms reoccur," Morneau said Monday, after he hit a double off the center field wall in a 10-4 spring training loss to the Tampa Bay Rays. "The chance of going backwards is when I get worn down. I can have the fogginess and the headaches, and all that stuff can return, if my system gets too worn down. Then I'm in a vulnerable position."