McCain posted 20 points (7-9 FG, 6-8 3Pt), two rebounds, two assists and one steal over 22 minutes during Tuesday's 116-104 win over the Spurs.
McCain was a spark off the bench, scoring 20 points behind only Shai Gilgeous-Alexander and hitting six of his eight three-point attempts. He came through again in the second half, when San Antonio cut a 26-point lead to single digits, combining with Gilgeous-Alexander for 25 points after the break.