Williams signed a deal with the Wizards on Friday, according to NBA reporter Chris Haynes.
Watkins (knee) didn't play in Saturday's 91-83 Summer League win over the Hawks.
Okpara posted 12 points (6-13 FG, 0-1 3Pt), eight rebounds, two assists and one block across 27 minutes in Saturday's 91-83 Summer League win over the Hawks.
Beekman registered 13 points (5-10 FG, 1-3 3Pt, 1-1 FT), six rebounds, 14 assists and one steal over 31 minutes in Saturday's 91-83 Las Vegas Summer League win over the Hawks.
Steinbach supplied 22 points (7-10 FG, 1-2 3Pt, 3-6 FT), 11 rebounds and one steal across 29 minutes in Friday's 92-90 Summer League loss to the Kings.
Anderson recorded 18 points (4-11 FG, 1-6 3Pt, 4-4 FT), four rebounds, eight assists and three steals over 29 minutes during Friday's 92-90 Las Vegas Summer League loss to the Kings.
Trimble registered 24 points (8-12 FG, 2-5 3Pt, 4-5 FT), three rebounds, one assist, one steal and one block over 27 minutes in Wednesday's 108-94 Summer League loss to the Clippers.
Livingston logged 20 points (8-15 FG, 2-5 3Pt, 2-3 FT), nine rebounds and four assists over 31 minutes in Wednesday's 108-94 Summer League loss to the Clippers.
Watkins (knee) did not play in Wednesday's 108-94 Summer League loss to the Clippers.
Okpara (not injury related) has been ruled out for Wednesday's Summer League game against the Clippers, Josh Robbins of The Athletic reports.
