Layup line: Rookies busy at Indy Pro-Am

Our occasional glance at Celtics-related headlines across the web. Follow the links below to jump quick to a section:

The rundown: Rookies stay busy | Walking away | Emotional Big Baby | Doc at Coaching U

ROOKIES KEEPING BUSY IN INDY: Celtics draft picks JaJuan Johnson and E'Twaun Moore are staying sharp through the lockout by participating in the Indy Pro-Am basketball league on the campus of IUPUI this summer. Here's more on Moore, courtesy of Indy TV station, WLFI:

"It's exciting going to Boston and a good team, especially to go there with JaJuan [Johnson], you know we are best friends, so it is definitely fun," said Moore.

For an NBA rookie who doesn't have a guaranteed contract, it's important to stay sharp and continue to work on your game. "They told me to keep working hard you know and hopefully when the year come back around to be ready to play and hopefully go in there with a positive attitude and hopefully get on the team," said Moore.

* COUSY, RUSSELL, COWENS LEFT PLENTY ON TABLE: In the wake of Yao Ming's retirement, NBA.com's Steve Aschburner looks back at 10 players that walked away from basketball despite still having something to give to the game. Here's a glance at those spotlighted from the Celtics:

Bob Cousy: The great Boston Celtics playmaker was 34 when he wrapped up his 13th and final season in the NBA in 1963. He led the league in assists for eight consecutive seasons (1952-60) and helped Boston win six NBA titles in his final seven years. His playing time had dropped off in 1962-63 but pro-rated to 36 minutes, Cousy's stats -- 18.3 ppg, 9.4 assists -- were as good as or better than his career numbers. (We won't count his gimmicky return as a player-coach for seven games with Cincinnati seven years later as a legitimate encore.)

Bill Russell: Russell clearly was showing signs of wear and tear while turning 35 in 1968-69. He had tendinitis in his knees and appeared to play hunched over, while taking off a few games late in the regular season. But the Celtics' leader, player-coach and defensive star still averaged 42.7 minutes, 9.9 ppg and 19.3 rpg that season. In the postseason, those numbers went up to 46.1, 10.8 and 20.5, with 5.4 assists. Russell didn't tell the Celtics he was through -- they drafted guard Jo Jo White rather than go big for a Russell replacement -- instead selling his story to Sports Illustrated that summer. "Russell was still a great player, but it was the mental part [while coaching and playing] that wore him out," Red Auerbach said.

Dave Cowens: Cowens was just 31 when he played his last game for the Celtics at the end of 1979-80. He had averaged 14.2 ppg, 8.1 rpg and 3.1 apg while helping Boston -- in Larry Bird's rookie season -- to a 61-21 record and a spot in the East finals. The 6-foot-9 undersized center, the NBA MVP in 1973, was the consummate hustle player. But he walked away and eventually drove a taxi -- not out of need but out of curiosity -- before making a brief comeback (8.1 ppg and 6.9 rpg in 40 games) for old Celtics pal Don Nelson in Milwaukee in 1982-83.

* BIG BABY GETS EMOTIONAL: Celtics forward Glen Davis choked up while speaking at the Rotary Club of Baton Rouge Wednesday. From Baton Rouge TV station, WAFB:

[Davis] got emotional while talking about how blessed his life has been. "I was one of the lucky ones," said Davis as his voice trailed off and the tears came rolling down his cheeks. He got his nickname as a child because he cried a lot while playing sports. "... But I didn't make it alone."

WAFB/Baton Rouge TV

Glen Davis gets emotional Wednesday.He thanked his mentors and coaches for helping him become a successful professional athlete, composed himself and continued on with his speech... Davis spoke about growing up in Baton Rouge, how much he loved playing for the Celtics, how much he admired his teammates, and how difficult it was being raised by a single mother.

"I had to grow up fast," he said. "My message is that anything is possible. " I am an example. Stay in school, get an education and stay out of trouble and you can make it. These are all the baby steps in life."

*COACHING DESPITE THE LOCKOUT: Celtics coach Doc Rivers was among the noteworthy presenters at a Coaching U session Wednesday on the campus of the University of Central Florida in Orlando. Rivers broke down Celtics' game film during the basketball-heavy clinic: