Mark Bartelstein, the agent for free-agent guard Dan Dickau, said his client will decide by the end of the weekend whether to accept a training camp invitation from the Celtics. Dickau played 19 games with the Celtics in 2005-06 before training his Achilles tendon and missing the remainder of the season. Dickau would be in heavy competition for the third point guard spot with players such as Lester Hudson.
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