First impressions: Training Camp, Day 2

Chris Forsberg/ESPN Boston

The younger players run 4-on-4 after practice.NEWPORT, R.I. -- Five quick observations after the Boston Celtics wrapped up their second day of training camp Wednesday at the Rodgers Recreation Center on the campus of Salve Regina University:

  • Making strides on Day 2: Celtics coach Doc Rivers wasn't thrilled with his team's conditioning on Day 1, but offered positive reviews after Wednesday's session. "We had a really god practice today, good energy," said Rivers. "It was an hour less of time, so I figure that had a lot to do with it. But it was a good practice."

  • A focus on defense: Rivers noted that the majority of sessions are spent with an emphasis on defense, saying as much as 75 percent of Wednesday's session was devoted to that side of the ball. "In our first two exhibition games [last year], we only had our early offense and we were fine with that. We're a defensive team, we've got to be a defensive team, so we gotta get that in first." The Celtics also did a good amount of conditioning work during Wednesday's session.

  • Water under the bridge: Celtics forward Glen Davis was near the gymnasium doors as Rivers exited towards the team bus. Rivers hollered, "Are we OK today?" before flashing a big smile as Davis nodded in approval. After Davis sounded off about an undefined role at Media Day, Rivers fired back Tuesday saying he should know his role or sit on the bench.

  • West putting in extra work: Celtics guard Delonte West can't even play until mid-November due to a 10-game suspension to start the season as a result of his off-the-court troubles. That hasn't stopped him from being one of the hardest workers early in camp. For the second straight day, West stayed late to get up extra shots after practice and was the last one to leave the floor.

  • Happy B-Day, coach Ainge: Celtics rookies were forced to sing Happy Birthday to Maine Red Claws coach Austin Ainge as practice concluded (video below). Just one of the pitfalls of being a nontenured member of the Green before camp.