New York Yankees general manager Brian Cashman might have had good reason to tell third baseman Alex Rodriguez to "shut the (explicative) up" Tuesday night.

Per Bob Klapisch from The Record (N.J.), a source with the Yankees has characterized Rodriguez's behavior through the last few days as "bizarre."

News also surfaced that during Rodriguez's conference call with Cashman and team president Randy Levine, Rodriguez told the two, "I don't know when I'm coming back. It could be July, it could be August. It might not be this year."

Rodriguez tweeted Tuesday night that Dr. Bryan Kelly, the surgeon that operated on Rodriguez's hip in January, had given him "the green light" to move ahead with his rehab and play in games again.

To add more fuel to the tweet, Rodriguez posted a picture on Instagram of him and Kelly talking at the Yankees' training facility in Tampa, Fla.