Spencer contributed 14 points (4-8 FG, 2-4 3Pt, 4-4 FT), four rebounds, five assists and one steal in 25 minutes during Sunday's 140-112 victory over the Wizards.
Spencer (ankle) recorded zero points (0-1 FG, 0-1 3Pt), two assists, one rebound and one block in nine minutes in Wednesday's 117-111 win over the 76ers.
Spencer (ankle) has been upgraded to questionable for Wednesday's game against the 76ers.
Grizzlies general manager Zach Kleiman said Monday that Spencer recently suffered an ankle sprain and that he will miss the beginning of preseason.
Spencer has been shut down for the remainder of Summer League due to a minor ankle sprain, Drew Hill of The Daily Memphian reports.