Head coach Nick Nurse said Walker will make his 76ers debut against the Nets on Saturday, Erik Slater of ClutchPoints.com reports.

Walker may be available for Saturday's game against Brooklyn despite his deal still not being official, Adam Aaronson of PhillyVoice.com reports.

Walker has signed a two-year, $3 million contract with the 76ers, Shams Charania of ESPN reports.

The Celtics are waiving Walker on Saturday, Bobby Marks of ESPN.com reports.

Walker will return to the bench for Tuesday's preseason game against the Raptors, Blake Murphy of Sportsnet.ca reports

Walker scored 20 points (8-15 FG, 4-9 3Pt) and dished out one assist across 30 minutes in Sunday's 115-111 preseason win over the Raptors.

Walker will start Sunday's game against the Raptors, Blake Murphy of Sportsnet.ca reports.

Walker has agreed to a one-year contract with the Celtics, Adrian Wojnarowski of ESPN reports.

Walker accumulated 15 points (6-13 FG, 3-8 3Pt), four rebounds, two assists, one block and one steal in 33 minutes during Friday's 111-107 loss to New York.

Walker notched 14 points (5-13 FG, 3-6 3Pt, 1-2 FT), seven rebounds, three assists and one block over 20 minutes in Monday's 133-111 loss to Indiana.