LAS VEGAS — The Celtics are up to something. Talk to any front-office executive here at the annual Summer League festivities , and the consensus is that a major deal involving Boston is coming soon.

But it might not be the deal most were expecting. While speculation has held that the Celtics would pursue Thunder point guard Russell Westbrook after Kevin Durant left the team to join the Warriors , sources told Sporting News that Westbrook’s representatives have been given no word of a potential deal. Westbrook can become a free agent after the season, so it would be part of the due diligence of the Celtics to find out if he’d be willing to consider staying in Boston long-term.

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That does not necessarily rule out a trade of Westbrook to Boston. But it makes it unlikely, at least until that contact is made, that the Celtics are now targeting him. The team has viewed this as a crucial summer, so their activity is expected. The Celtics are stocked with young players, have a raft of future picks available and have already signed big man Al Horford in free agency, as they hope to push closer to the Raptors and Cavaliers in the East.

The likely target for the Celtics, according to front-office sources, is Clippers forward Blake Griffin. The Clippers have been weighing trading Griffin all season , and the possibility of a three-team package involving Sacramento sending Rudy Gay to the Clippers has emerged. The Celtics would give up some number of their upcoming draft picks, but opposing front-office members say they don't want to give up either Brooklyn pick Boston can own in the next two years.

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The Clippers have 31-year-old point guard Chris Paul on hand, and league sources have said that if the Clippers move Griffin — a move that Clippers coach and front-office head Doc Rivers is reluctant to make — they will want a deal that involves draft picks and a frontline star who can keep them in Western Conference contention.

The other bit of speculation on the Celtics front is Kevin Love . While several front-office types brought up Love as a Celtics target, none believed that Love would possibly come available in the wake of the Cavs’ championship. Cleveland winning the title has greatly reduced the Kevin Love rumor-mill.

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The Celtics have already made a splash this summer with Horford. But clearly, they’re not quite done yet.