The Toronto Raptors’ Scottie Barnes has been downgraded to doubtful for Friday’s matchup against the Celtics due to a right knee injury sustained in a game against the Hornets. After participating minimally in Friday’s shootaround, Barnes is likely to sit out, potentially paving the way for Sandro Mamukelashvili or Ochai Agbaji to replace him in the starting lineup alongside Collin Murray-Boyles.