Celtics Q&A with B-Robb at 5 p.m. ET: Talking 15th man, Theis, rookies and training camp storylines

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The start of Celtics training camp is just under two weeks away and there are plenty of questions that still remain about a Celtics roster that's yet to be finalized. Some free agent possibilities have fallen off the board this week (Tony Allen, Boris Diaw) while others continue to have rumors swirl around them (Andrew Bogut). We also saw plenty of Daniel Theis this week in Euroleague and have plenty to debate on the lottery front. We'll be talking about all that and more in today's chat so feel free to start firing away your questions now.

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