Ray Allen's decision to sign with the Miami Heat may come across as a curious one when you look at the facts. For starters, Allen spent that last five years in Boston. He won one championship here, and nearly another. Secondly, the Celtics were offering double what Miami offered -- $12 million over two years compared to $6 million. Something didn't add up.

Well, according to Yahoo! Sports, relationship rifts with member of the Celtics, namely Rajon Rondo and Danny Ainge, are to blame for Allen's decision to leave the 17-time champions.

The deterioration of Ray Allen's relationship with Rajon Rondo played a significant factor in his leaving for Miami, several sources tell Y!

— Adrian Wojnarowski (@WojYahooNBA) July 7, 2012

As Y! had reported, Allen was angry w/ near-trade to Memphis at deadline. Too much acrimony to get past. Off to Miami for less money.

— Adrian Wojnarowski (@WojYahooNBA) July 7, 2012

Doc Rivers had tried to mend Rondo-Allen issues after season, but one team source says, "They were too far gone."

— Adrian Wojnarowski (@WojYahooNBA) July 7, 2012

Money didn't matter this time for Allen, and the rifts made it much easier to leave Boston.

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