Live Q&A: B-Robb on Celtics at 3 p.m. ET

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Preseason is over and opening night is quickly approaching and we've got plenty to talk about as things start to get geared up. Whether it's Isaiah's comments towards Danny Ainge, Marcus Smart's extension, starting lineups, rotations or other preseason takeaways, we'll be ready to talk about all that or more this afternoon. Get your questions in now.

Here’s a reminder how this will work in the comments:

If you have signed up as a subscriber, then you can leave questions about whatever you want down below. Just after 5 on Wednesday, I’ll go through and answer as many as possible. When it’s done, all that will be left are the Qs that were used, my replies and any follow-ups by the original questioner. To make it a clean experience for everyone, please don’t use this the way you would an ordinary commenting thread, where we normally encourage a healthy and respectful discussion.