With a little prodding, Steve learned that Nick was sad that he hadn't received an invitation to Martin Luther King, Jr.'s birthday. On Monday, wearing a black Adidas shirt with the late Civil Rights leader's likeness, touched upon that anecdote before discussing the significance of Monday's holiday. I have to say I'm really proud to be a part of the NBA, proud of Adam Silver's leadership, proud the league is progressive promoting tolerance and equality. [...] it's critical for people to have compassion and have empathy and I'd hope during these times — with so much anger and divide — that we'd be reminded of that today. Connor Letourneau is a San Francisco Chronicle staff writer.