East Notes: Knicks, Quentin Grimes, Nets, Bucks, Doc Rivers,

Knicks

• Backup guard Quentin Grimes is drawing trade interest from the Hawks, Wizards and Jazz, per Ian Begley of SNY.tv. The Knicks reportedly have made Grimes available ahead of the Feb. 8 trade deadline.
• New York also has Washington center Daniel Gafford “on the radar,” per Begley. “The interest in Gafford comes while New York is dealing with injuries to Isaiah Hartenstein and Mitchell Robinson.

Nets

• Forward Royce O’Neale is drawing trade interest from multiple teams — including the Bucks, Mavericks, Nuggets, Pacers and Timberwolves, per Brian Lewis of the New York Post.
• Small forward Mikal Bridges indicated he tries not to focus too much on the trade deadline. “Just prepare, watch and wait,” he told Mark Medina of Sportskeeda.

Bucks

Big man Bobby Portis Jr. said the Bucks are more responsible for Friday’s loss to the Cavaliers than the Cavaliers.

“It wasn’t them,” he said. “It was us. I think we slowed ourselves down. We were attacking matchups. We weren’t playing side to side. The ball wasn’t moving side to side. We played a lot of 1-on-1 tonight.”

• The Bucks officially announced that Doc Rivers would become their next coach in the final minute of Friday’s game. Rivers is expected to coach his first game with the team on Monday, when the Bucks host the Pelicans. He was fired by the 76ers after last season.
• Rivers, 62, spent 15 weeks as an in-game analyst for ESPN. “I’ve never done this, I wouldn’t wish this on anyone,”: he told reporters of taking the Bucks job. “It’s going to be a challenge. It’s a challenge I’m running toward.”
• He previously coached the Philadelphia 76ers, Los Angeles Clippers, Boston Celtics and Orlando Magic and has an overall coaching record of 1,097-763 in 24 seasons. That includes a championship with the Celtics in 2008. 
• Interim coach Joe Prunty finished 1-1, with both games at home against the Cavs. He will be retained by Rivers and move back into an assistant role.