Westbrook left Monday's win over the Pelicans with an ankle sprain after landing awkwardly on Anthony Davis' foot.
Ball will return to the court, this time at SPIRE Institute in Geneva, Ohio.
Jamal Murray was in inspired form against the Celtics, but Kyrie Irving was not impressed by his late shot when the result was secured.
X-rays came back negative after Draymond Green hurt his right foot in the first quarter against the Memphis Grizzlies on Monday.
Even without Kawhi Leonard, the Toronto Raptors continued their strong start to the NBA season.
Russell Westbrook suffered a suspected ankle injury during the Oklahoma City Thunder's clash with the New Orleans Pelicans.
Kawhi Leonard will miss another game for the Toronto Raptors, the team confirmed.
Golden State Warriors star Kevin Durant spoke about the on-court relationship he has with Stephen Curry.
The deal is a guaranteed contract through this season and a partial guarantee for next season.
The longtime coach helped turn Houston's defense to a strength in consecutive seasons but retired just before training camp.