The Lakers are done.  They know it. We know it.  They trail their second-round playoff series against the reigning champion Thunder 3-0, a deficit no NBA team has ever recovered from. So, what’s left to play for in Game 4 ?  For the Lakers, there’s pride on the line. They don’t want to get swept.  The Lakers’ LeBron James and his teammates are playing for pride and don’t want to get swept by the Thunder. NBAE via Getty Images LeBron James , who’s undecided about his future, doesn’t want his career to potentially end so unceremoniously.  Austin Reaves, who has free agency looming this summer after he’s expected to turn down his $14.9 million player option for next season, wants to leave a strong impression as he tries to secure a lucrative contract.  Lakers coach JJ Redick has gotten the team to fight all season.…