McCallum will link up with Houston for summer league action after spending part
of this past season with the Hornets. Although he never played over the course
of two 10-day contracts with Charlotte, McCallum averaged 17.6 points, 7.0
assists and 5.8 rebounds in the G League, and boasts previous NBA experience
having played his first two seasons with the Kings before stints with the Spurs
and Grizzlies in 2015-16.