Cliff Lee brought his 12-year-old son to sit with him in the Jackie Robinson Rotunda for the National League’s 45-minute media availability Monday at Citi Field.

Dressed like dad in an All-Star BP jersey, not-so-little Jaxson Lee didn’t seem to be paying much attention to the nonstop questions and answers until someone asked if he wanted to become a big leaguer someday.

“Yeah, but I don’t think I can,” the boy said, leaning forward so everyone could hear.

Jaxson, diagnosed with Leukemia at five months old and given a 30 percent survival rate, then beat cancer a year later due to successful umbilical cord transplant surgery.

Living through that must make the stress of dealing with another July trade deadline easier for Cliff Lee, a four-time All-Star left-hander who has moved his wife and two children twice at this time of year and could do so again if his third-place Phillies go into a funk when returning from the All-Star break.

“The previous three times I’ve been traded, I was the last one to know, so it’s all rumors until Ruben calls me and tells me I’m traded,” Lee said.

Ruben Amaro Jr., the Phillies GM, is on record saying recently that he prefers to build around Lee and fellow ace Cole Hamels, but he’s still waiting to decide whether to be a buyer or seller by July 31, baseball’s annual non-waiver trade deadline. The options are to load up to make another run, or shed veterans (and payroll) from a team that is playing .500 baseball this season after sinking to 81-81 last season after winning five division titles, two pennants and a World Series championship from 2007-11.

“I guess it would be bad to say I don’t care what management thinks about that, but that’s kind of true,” Lee said. “It really doesn’t matter what anyone thinks about our team. It’s more about what we think amongst ourselves and us coming together as a team ... because when we do that, we’ll win.”