Celtics head coach Ime Udoka said Sunday that Johnson won't be re-signed to a second 10-day deal after the veteran's contract expired Saturday, Gary Washburn of The Boston Globe reports.

Johnson entered the game late and scored two points in Boston's 111-101 Wednesday home win over the Cavaliers.

Johnson signed a 10-day contract via hardship exemption with the Celtics on Wednesday, Adrian Wojnarowski of ESPN reports.

Johnson (Achilles) was waived by the Pistons on Monday, Adrian Wojnarowski of ESPN reports.

Johnson is experiencing swelling in his Achilles, though a series of tests came back as negative for any structural damage, Chris Haynes of Yahoo Sports reports.

Johnson agreed to a partially guaranteed contract with the Pistons on Thursday, Shams Charania of The Athletic reports.

The Pistons may be the frontrunner to sign Johnson, Noah Coslov of Sirius XM reports.

Johnson is planning on working out with the 76ers, Bucks and Nuggets, Marc J. Spears of ESPN reports.

Johnson produced five points (2-10 FG, 0-2 3Pt), five assists and three rebounds across 29 minutes in a 96-83 loss to the Kings.

Johnson was a healthy scratch Sunday, perhaps earning himself a rest day.