In hindsight, maybe it shouldn't have been all that surprising that Robert Williams fell down the 2018 NBA Draft board.
We're yet to see if Williams' pure talent will win out in the battle with sometimes a lack of effort - which is a fight many young players in the National Basketball Association go through - but to this point we've seen exactly why Williams experienced his draft day slide.
But his absence Sunday did nothing to dispel the lingering notion that Williams is not committed to putting in the work necessary to emerge as a contributor on a Celtics team with championship aspirations.
"He dunks with his elbows, which is a really positive thing", Larranaga said with a laugh. "I talked to Coach (Brad) Stevens when I got back and he obviously explained to me about the opportunity".
It's going to be very interesting to see what Williams has to say for himself here.
It's clear Celtics assistant coach Jay Larranaga was not pleased. Picked up the points of emphasis that we had yesterday in practice really well. Seems very coachable. Like we said, this is the beginning of the process for him and for the summer league team. "Day 1 was good". "There's not that many so definitely a real wake-up call", Williams said. With Ainge and Stevens talking to Williams about his opportunity and discipline, Larranaga could focus on the basketball part of the rookie's education. Tatum will not participate in summer league, but Stevens asked him to join the Celtics' youngest players for practices before they head west. "And I'm just excited to get to meet him".
"Everyone is excited, right?" he said.
Williams admits that he already has some work to do repairing his image.
Asked about the criticism regarding his work ethic, Williams said Friday: "People question my motor a lot, but I work hard and know I can work hard".
"Missing my flight didn't help", he said.