Dawson Garcia is Minnesota’s leader on both ends of the court. His teammates know it. His opponents know it, too. That is why opposing teams are doing anything they can to limit Garcia’s impact for Minnesota early in the season. The trend likely will continue when the Golden Gophers (4-1) host Central Michigan (3-2) on Monday night in Minneapolis. “Obviously, we know he’s going to be the focal point,” Minnesota coach Ben Johnson said. “Other guys do have to step up. You’ve got to take…..