There’s a quiet tension hanging over the Western Conference semifinals between the Lakers and the Thunder.  It’s an anxiety that you won’t find in a box score, but it hangs over every day in Los Angeles like a dark, impenetrable cloud. It’s the absence of Luka Doncic .  Lakers superstar Luka Doncic, who has been sidelined since April 2, is not expected to return at least until Game 3 of the series against the Thunder. IMAGN IMAGES via Reuters Connect The MVP candidate’s absence lingers inside the Lakers’ practice facility and behind closed locker room doors. You can see it in the players’ and coaches’ minds when they deliver half-answers and tight smiles after being asked about their chances of beating the reigning champions without their best player.  The Thunder are dealing with an injury to a starting player as well, but let’s start with Doncic because everything about this series begins and ends with him.…