Maybe this guy can help us down low...
Sounds like a longs shot at this point, but never know..I don't think he plays center either..the article says the Heat are after him too..

The reasons for signing Martin: It’s unclear how much center Martin can play, but Jermaine O’Neal, Chris Wilcox and Greg Stiemsma all currently figure into Boston’s rotation. If he’s willing to sign for the veteran’s minimum, why not? And his tattoos are so mesmerizing, it might be difficult to focus on the actual games (which would especially come in handy at times like last night, when the Celtics are busy collapsing against inferior foes).

It’s a very long shot, regardless of how you weigh those pros and cons