Robert Williams (knee) went through a full workout Tuesday morning, but sat out the Celtics' scrimmage later in the day, Scott Souza of GateHouse Media reports. Head coach Brad Stevens said he expects Williams to play in the preseason opener Friday against the Hornets.
Kyrie Irving (knee) was a full participant in the Celtics' first practice Tuesday, Scott Souza of GateHouse Media reports.
Gordon Hayward said following Tuesday's practice that he intends to play in the Celtics' preseason opener Friday against the Hornets, Scott Souza of GateHouse Media reports.
Goran Dragic tweaked his ankle during Tuesday's practice, but he doesn't expect to miss any time, Tim Reynolds of the Associated Press reports.
DeMarcus Cousins (Achilles) remains limited, but coach Steve Kerr intimated that he's further along than expected in his recovery from a torn Achilles, Anthony Slater of The Athletic reports. "We're just taking it slowly, but I don't think it'll be too long before he's taking part in practice," Kerr said.
Jabari Bird (not injury related) was not with the team during Tuesday's practice, Clevis Murray of The Athletic reports.
Kawhi Leonard went through full-court, 5-on-5 drills at Tuesday's practice, Josh Lewenberg of TSN reports.
Porter Jr. (back) did not participate in Tuesday's opening day of training camp, T.J McBride of Mile High Sports reports.
Maurice Harkless (knee) went through about one third of Tuesday's practice, Joe Freeman of The Oregonian reports.
Dzanan Musa (ankle) was limited to conditioning during Tuesday's practice, Brian Lewis of the New York Post reports.
Rondae Hollis-Jefferson (hip) did "40 to 50 percent" of Tuesday's practice, Brian Lewis of the New York Post reports.
Lonzo Ball (knee), as expected, is being held out of contact drills to begin training camp, Ohm Youngmisuk of ESPN.com reports.
Rajon Rondo is expected to begin the season as the Lakers' starting point guard over Lonzo Ball, Dave McMenamin of ESPN reports.
Coach David Fizdale noted at Tuesday's practice that there are no set starters, suggesting Mario Hezonja could earn a starting job during training camp, Ian Begley of ESPN.com reports.
Kevin Knox could compete for a starting spot after coach David Fizdale said Tuesday that all five positions will be an open competition, Ian Begley of ESPN reports.
J.R. Smith was limited during Tuesday's practice due to a sore hip, Joe Vardon of The Athletic reports.
Austin Rivers was limited by neck spasms at Tuesday's practice, Fred Katz of The Athletic reports.
Dwight Howard (back) did not practice Tuesday.
Nate Robinson was waived by Homenetmen Beirut B.C. of the Lebanese Basketball League after it was revealed that an injury he has requires further treatment, Sam Amico of AmicoHoops.net reports.
Vince Edwards is day-to-day with a strained left adductor, Jonathan Feigen of the Houston Chronicle reports.