Clarity on the existence of Jackson's alleged promise doesn't seem likely to come any time soon, but it is worth noting that Jackson reportedly cancelled his workout with the Boston Celtics that was set for Monday, according to Jeff Goodman and Marc J. Spears of ESPN.
While this doesn't necessarily mean that Jackson has a promise from the Lakers, it doesn't exactly quell speculation on that front either. If the Lakers do draft him, he’ll be their second lottery pick out of their last four to cancel a workout in Boston, following in Julius Randle’s footsteps.
It's possible Jackson had a scheduling conflict, or that he had a promise from another team, or even that he just assumed the Celtics will do as expected and draft Markelle Fultz, but there seems to be enough smoke here that it can be safely assumed that something is going on.
Here is an updating list of every player the Lakers have worked out or met with. Harrison Faigen is co-host of the Locked on Lakers podcast (subscribe here), and you can follow him on Twitter at @hmfaigen.