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The Celtics' 15-man roster seems to be coming into focus after the addition of Leandro Barbosa.Resetting the Boston roster after the team inked Leandro Barbosa to a one-year, veteran-minimum contract on Wednesday:

GUARANTEED CONTRACTS (14)

Guards: Rajon Rondo ($11 million), Avery Bradley ($1.6 million), Jason Terry ($5 million), Courtney Lee ($5 million); Leandro Barbosa ($854,389**) Forwards: Paul Pierce ($16.8 million), Brandon Bass ($6 million), Jeff Green ($8.4 million), Jared Sullinger ($1.3 million*) Center: Kevin Garnett ($11.6 million), Chris Wilcox ($854,389**), Jason Collins ($854,389**), Darko Milicic ($854,839**), Fab Melo ($1.3 million*)

NON-GUARANTEED CONTRACTS (1)

Kris Joseph ($473,604)

MONEY ON THE BOOKS (3)

Keyon Dooling ($854,389**), Jamar Smith ($25,000), Dionte Christmas ($236,800)

TRAINING CAMP INVITES (2)

Rob Kurz, Micah Downs

FREE AGENTS FROM 2011-12 SEASON (1)

Mickael Pietrus, Sean Williams (Waived by Rockets)

THE DEPARTED (9)

Ray Allen (Heat), Greg Stiemsma (Timberwolves), Jermaine O'Neal (Suns), JaJuan Johnson (Rockets), E'Twaun Moore (Magic; Waived by Rockets), Sasha Pavlovic (Trail Blazers), Ryan Hollins (Clippers), Marquis Daniels (Bucks)

Estimated total salary committed (guaranteed/partial deals): $72.5 million

(* = 120% of rookie scale; ** = League pays portion of veteran-minimum deal)

A handful of thoughts on Boston's roster status less than two weeks before the regular season tips off in Miami:

* Assuming that Joseph secures the final roster spot, the Celtics are looking at a total salary commitment of roughly $73 million.

* Unless Dooling facilitated a buyout, the Celtics are on the hook for his minimum contract and, combined with the partial deals for Christmas and Smith, that's about $1.1 million in extra salary (which is factored into our 15-man cost commitment above). Keep in mind that Boston is hard-capped at the $74.3 million tax apron after utilizing the full value of the mid-level exception this offseason (obviously, they have limited wiggle room moving forward).

* One benefit of carrying Joseph out of camp is that his contract would not be fully guaranteed until a couple of months into the season. If Boston was suddenly desperate to create a roster spot, it could still cut ties with Joseph at a low cost. That said, coach Doc Rivers said Tuesday that the Celtics like his potential and since a team rarely needs to run 15 deep (you can only dress 13 guys for games), it's not a bad thing to keep a younger player or two stashed at the end of the roster.

* With that in mind, it seems likely that -- barring injuries that deplete depth -- both Joseph and Melo will spend extended time with the Maine Red Claws of the D-League this season. Given Boston's increased role with the Claws, it'll provide the younger players a chance for game reps while still learning the Celtics' system.

* Rivers suggested final cuts will come at the end of Boston's exhibition slate, which wraps Sunday with a visit from the Philadelphia 76ers at TD Garden. Unless Downs or Kurz makes a sudden surge for final consideration, the Celtics can trim to 15 before diving into eight days of practice leading up to the season opener in Miami on Oct. 30.