The former Wildcat scored eight points in nine minutes, shooting 2-5 from the field, 2-3 from 3-point range and 2-2 from the free throw line.
York checked in midway through the first quarter and immediately sank two 3-pointers to give the Lakers a lead.
L.A. went on to beat the Sacramento Kings, 95-92.
Lauri Markkanen’s day did not go as well, as he was unable to build off a strong debut.
The Chicago Bulls’ forward had eight points and nine rebounds in 31 minutes, but shot 1-13 from the field and 0-10 from 3. He did sink all four of his free throw attempts and block four shots, however.
Markkanen had 14 points and eight rebounds in his first appearance with the Bulls on Saturday.
Last day before the “playoffs”
Tuesday’s slate of games are the last seeding games of Las Vegas Summer League, and several former Arizona Wildcats are in action.
Lauri Markkanen and the Chicago Bulls face the Washington Wizards at 3 p.m. PST (NBATV).
Follow Ryan Kelapire on Twitter at @RKelapire