EL SEGUNDO — It was more than five months ago when Luka Doncic first expressed eagerness for what this past week would bring for the Lakers. So how would the 26-year-old Slovenian star guard describe his first Lakers training camp, in just three words? “Championship Habits”; “Championship Communication,”; and “Championship Shape” were displayed on a yellow board inside the Lakers’ training facility during the portion of practice open to media members. We all got the run in and we all got better for it.”Being in “championship shape” isn’t just a mantra that can’t be defined. So if those things are being done at a really high level, we’re in shape.”Doncic made sure to mention that being in “championship shape” is a mental demand, too.